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Richard Armstrong ~ Publications

Archanjo, C.J., Hollanda, M.H.B.M., Rodrigues, S.W.O., Neves, B.B.B., Armstrong, R.A., (2008) Fabrics of pre- and syntectonic granite plutons and chronology of shear zones in the Eastern Borborema Province, NE Brazil, Journal of Structural Geology, Vol 30, 210-326.

Bailie, R., Armstrong, R.A., Reid, D., (2008) Response to the papers by Bailie et al. concerning the age and deposition of the Bushman Group (SAJG, 110, 59-86) and single zircon ages of the Aggeneys Granite Suite (SAJG, 110, 87-110), South African Journal of Geology, Vol 111, 112-113.

Cho, D.-L., Lee, S.R., Armstrong, R. (2008). Termination of the Permo-Triassic Songrim Indosinian) orogeny on the Ogcheon belt, South Korea: Occurrence of ca. 220 Ma post-orogenic alkali granites and their tectonic implications. Lithos 105, 191-200.

da Silva, L.C., Pedrosa-Soares, A.C., Teixeira, L.R., Armstrong, R., (2008) Tonian rift-related, A-type continental plutonism in the Araçuaí Orogen, eastern Brazil: New evidence for the breakup stage of the São Francisco-Congo Paleocontinent, Gondwana Research, Vol 13, 527-537.

Grantham, G.H., Macey, P.H., Ingram, B.A., Roberts, M.P., Armstrong, R.A., Hokada, T., Shiraishi, K., Jackson, C., Bisnath, A., Manhica, V., (2008) Terrane correlations between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica, Geological Society, London, Special Publications, Vol 308, 91-119.

Gray, D.R., Foster, D.A., Meert, J.G., Goscombe, B.D., Armstrong, R.A., Trouw, R.A.J., Passchier, C.W., (2008) A Damara Orogen perspective on the assembly of southwestern Gondwana, In: West Gondwana; pre-Cenozoic correlations across the South Atlantic region, Eds: Pankhurst, R., Trouw, R.A.J., de Brito Neve, B.B., de Wit, M.J., Geological Society Special Publication 294, 257-278.

Klein, E.L., Luzardo, R., Moura, C.A.V., Armstrong, R.A., (2008) Geochemistry and zircon geochronology of Paleoproterozoic granitoids: Further evidence on the magmatic and crustal evolution of the São Luís cratonic fragment, Brazil, Precambrian research, Vol 165, 221-242.

Mendonidis, P., Armstrong, R.A., Grantham, G.H., (2008) U-Pb SHRIMP ages and tectonic setting of the Munster Suite of the Margate Terrane of the Natal Metamorphic Belt, Gondwana Research, (in press).

Moen, H.F.G, Armstrong, R.A., (2008) New age constraints on the tectogenesis of the Kheis Subprovince and the evolution of the eastern Namaqua Province, South African Journal of Geology, Vol 111, 79-88.

Mukhopadhyay, J., Beukes, N.J., Armstrong, R.A., Zimmermann, U., Ghosh, G., Medda, R.A., (2008) Dating the oldest greenstone in India: A 3.51-Ga precise U-Pb SHRIMP zircon age for dacitic lava of the southern Iron Ore Group, Singhbhum craton, Journal of Geology, Vol 116, Issue 5, 449-461.

Poujol, M., Hirner, A.J., Armstrong, R.A., Anhaeusser, C.R., (2008) U-Pb SHRIMP data for the Madibe greenstone belt: implications for crustal growth on the western margin of the Kaapvaal Craton, South Africa, South African Journal of Geology, Vol 111, 67-78.

Stollhofen, H., Werner, M., Stanistreet, IG., Armstrong, R.A., (2008) Single-zircon U-Pb dating of carboniferous-Permian tuffs, Namibia, and the intercontinental deglaciation cycle framework, In: Resolving the late Paleozoic ice age in time and space, Eds: Fielding, C.R., Frank, T.D., Isbell, J.L., Geological Society of America Special Paper 441, 83-96.

Van Reenen, D.D., Boshoff, R., Smit, C.A., Perchuk, L.L., Kramers, J.D., McCourt, S., Armstrong, R.A., (2008) Geochronological problems related to polymetamorphism in the Limpopo Complex, South Africa, Gondwana Research, Vol 14, Issue 4, 644-662.

Vasquez, M. L., Macambira , M. J. B., Armstrong, R.A., (2008) Zircon geochronology of granitoids from the western Bacajá Domain, southeastern Amazonian Craton, Brazil: Neoarchean to Orosirian evolution, Precambrian Research, Vol 161, 279-302.

Bailie, R., Armstrong, R., Reid, D., (2007) The Bushmanland Group supracrustal succession, Aggeneys, Bushmanland, South Africa: Provenance, age of deposition and metamorphism, South African Journal Geology, Vol 110, 59-86.

Bailie, R., Armstrong, R., Reid, D., (2007) Composition and single zircon U-Pb emplacement and metamorphic ages of the Aggeneys Granite Suite, Bushmanland, South Africa, South African Journal Geology, Vol 110, 87-110.

Escayola, M.P., Pimentel, M.M., Armstrong, R.A., (2007) Neoproterozoic backarc basin: Sensitive high-resolution ion microprobe U-Pb and Sm-Nd isotopic evidence from the Eastern Pampean Ranges, Argentina, Geology, Vol 35, 495-498.

Evans, D.M., Windrim, D.P., Armstrong, R.A., (2007) Age of metavolcanic rocks at the northern margin of the Namaqua-Natal Metamorphic Province in the Karas Mountains, Namibia, defined by SHRIMP U-Pb dating of zircons, South African Journal Geology, Vol 110, 47-54.

Kokonyangi, J.W., Kampunzu, A.B., Armstrong, R. , Arima, M., Yoshida, M. and Okudaira, T. (2007) U-Pb SHRIMP dating of detrital zircons from the Nzilo Group (Kibaran Belt); implications for the source of sediments and Mesoproterozoic evolution of Central Africa . Journal of Geology 115(1): 99-113

Mallmann, G., Chemale Jr., F., Ávila, J.N., Kawashita, K., Armstrong, R., (2007) Isotope geochemistry and geochronology of the Nico Pérez Terrane, Rio de la Plata Craton, Uruguay, Gondwana Research, Vol 12, 489-508.

Miller, C., Konzett, J., Tiepolo, M., Armstrong, R.A., Thöni, M., (2007) Jadeite-gneiss from the Eclogite Zone, Tauern Window, Eastern Alps, Austria: metamorphic, geochemical and zircon record of a sedimentary protolith, Lithos, Vol 93, Issue 1-2, 68-88.

Noce, C.M., Pedrosa-Soares, A.C., da Silva, L.C., Armstrong, R., Puizana, D., (2007) Evolution of polycyclic basement complexes in the Araçuaí Orogen, based on U-Pb SHRIMP data: implicartions for Brazil-Africa links in Paleoproterozoic time, Precambrian Research, Vol 159, 6-78.

Raup, B., Racoviteanu, A., Khalsa S.J.S., Helm C., Armstrong R., Arnaud Y. (2007) The GLIMS geospatial glacier database; a new tool for studying glacier change. In: Kaeaeb A., Chiarle M., Raup B., Schneider C. (eds) Climate change impacts on mountain glaciers and permafrost. Global and Planetary Change. 56(1-2): 101-110

Rogers, A.J., Kolb, J. Meyer, F.M., Armstrong, R.A. (2007) Tectono-magmatic evolution of the Hutti-Maski Greenstone Belt, India: Constrained using geochemical and geochronological data, Journal of Asian Earth Sciences, Vol 31, 55-70

Anma, R., Armstrong, R, Danhara, T. and Orihashi, Y. and Iwano, H. (2006) Zircon sensitive high mass-resolution ion microprobe U-Pb and fission-track ages for gabbros and sheeted dykes of the Taitao ophiolite, Southern Chile, and their tectonic implications. Island Arc 15: 130-142

Armstrong, R.A. , Lana, C., Reimold, W.U. and Gibson, R.L. (2006). SHRIMP zircon age constraints on Mesoarchean crustal development in the Vredefort dome, central Kaapvaal craton, South Africa. In: Reimold, W.U. and Gibson, R.L., Processes on the Early Earth: Geological Society of America Special Paper 405: 233-253

Ashwal, L.D., Armstrong, R.A., Roberts, R.J., Schmitz, M.D., Corfu, F., Hetherington, C.J., Burke, K. and Gerber, M. (2006) Geochronology of zircon megacrysts from nepheline-bearing gneisses as constraints on tectonic setting: implications for resetting of the U-Pb and Lu-Hf isotopic systems. Contributions to Mineralogy and Petrology 10.1007/s00410-006-0153-9

Ávila, J.N., Chemale Jr., F., Mallman, G., Kawashita, K. and Armstrong, R.A. (2006) Combined stratigraphic and isotopic studies of Triassic strata, Cuyo Basin, Argentine Precordillera. Bulletin Geological Society of America 118:1088-1098

Becker, T., Schreiber, U., Kampunzu. A.B., and Armstrong, R. (2006) Mesoproterozoic rocks of Namibia and their plate tectonic setting. Journal of African Earth Sciences 46: 112-140

Bisnath, A., Frimmel, H.E., Armstrong, R.A. and Board, W.S. (2006) Tectono-thermal evolution of the Maud Belt: New SHRIMP U-Pb zircon data from Gjelsvikfjella, Dronning Maud Land, East Antarctica. Precambrian Research 150: 95-121

Boshoff, R., Van Reenen,, D.D., Smit, C.A., Perchuk, L.L., Kramers, J.D. and Armstrong, R. (2006) Geologic History of the Central Zone of the Limpopo Complex: The West Alldays Area. The Journal of Geology 114: 699–716

de Vries, S.T., Nijman, W. and Armstrong, R.A. (2006) Growth-fault structure and stratigraphic architecture of the Buck Ridge volcano-sedimentary complex, upper Hooggenoeg Formation, Barberton Greenstone Belt, South Africa. Precambrian Research 149: 77-98

de Waal, S.A., Graham, I.T. and Armstrong, R.A. (2006) The Lindesque Drift and Heidelberg Intrusions and the Roodekraal Complex, Vredefort, South Africa: comagmatic plutonic and volcanic products of a 2055 Ma ferrobasaltic magma. South African Journal of Geology 109: 279-300

Dorland, H.C., Beukes, N.J., Gutzmer, J., Evans, D,A,D. and Armstrong, R.A. (2006) Precise SHRIMP U-Pb zircon age constraints on the lower Waterberg and Soutpansberg Groups, South Africa. South African Journal of Geology 109: 139-156

Dziggel, A., Stevens, G., Poujol, M. and Armstrong, R.A. (2006). Contrasting source components of clastic metasedimentary rocks in the lowermost formations of the Barberton greenstone belt. In: Reimold, W.U. and Gibson, R.L., Processes on the Early Earth: Geological Society of America Special Paper 405: 157-172

Grantham, G.H., Armstrong, R.A. and Moyes, A.B. (2006). The geology of a mafic dyke at Roerkulten, Sverdrupfjella, western Dronning Maud Land, Antarctica. In: Hanski, Mertanen, Ramo and Vuollo (eds) Dyke Swarms – Time Markers of Crustal Evolution. Taylor and Francis Group, London ISBN 0 415 39899 1

Han, R., Ree, J-H., Cho, D-L., Kwon, S-T. and Armstrong, R.A. (2006) SHRIMP U-Pb zircon ages of pyroclastic rocks in the Bansong Group, Taebaeksan Basin, South Korea and their implication for the Mesozoic tectonics. Gondwana Research 9: 106-117

Mapeo, R.B.M., Armstrong, R.A., Kampunzu, A.B., Modisi, M.P., Ramokate, L.V. and Modie, B.N.J. (2006). A ca. 200 Ma hiatus between the Lower and Upper Transvaal Groups of southern Africa: SHRIMP U-Pb detrital zircon evidence from the Segwagwa Group, Botswana: Implications for Palaeoproterozoic glaciations. Earth and Planetary Science Letters 244: 113-132

McCourt, S. Armstrong, R.A., Grantham, G.H., and Thomas, R.J. (2006) Geology and evolution of the Natal belt, South Africa. Journal of African Earth Sciences 46: 71-92

Moraes, R., Fuck, R.A., Pimentel, M.M., Gioia, S.M.C.L., de Hollanda, M.H.B.M. and Armstrong, R.A. (2006) The bimodal rift-related Juscelândia volcanosedimentary sequence in central Brazil: Mesoproterozoic extension and Neoproterozoic metamorphism. Journal of South American Earth Sciences 20: 287-301

Armstrong, R. , Master, S., Robb, L., (2005) Geochronology of the Nchanga Granite, and constraints on the maximum age of the Katanga Supergroup, Zambian Copperbelt Journal of African Earth Sciences 42: 32-40

Board, W., Frimmel, H., Armstrong, R., (2005) Pan-African Tectonism in the Western Maud Belt: P-T-t Path for High-grade Gneisses in the H.U. Sverdrupfjella, East Antarctica. Journal of Petrology 46(4): 671-699

da Silva, L., McNaughton, N., Armstrong, R., Hartmann, L., Fletcher, I., (2005) The neoproterozoic Mantiqueira Province and its African connections: a zircon-based U-Pb geochronologic subdivision for the Brasiliano/Pan-African systems of orogens. Precambrian Research 136: 203-240

Dziggel, A., Armstrong, R., Stevens, G., Nasdala, L., (2005) Growth of zircon and titanite during metamorphism in the granitoid-gneiss terrane south of the Barberton greenstone belt, South Africa. Mineralogical Magazine 69(6): 1019-1036

Graham, I., De Waal, S., Armstrong, R., (2005) New U-Pb SHRIMP zircon age for the Schurwedraai alkali granite: Implications for pre-impact development of the Vredefort Dome and extent of Bushveld magmatism, South Africa. Journal of African Earth Sciences 43: 537-548

Gray, D., Gregory, R., Armstrong, R., Richards, I., Miller, J., (2005) Age and Stratigraphic Relationships of Structurally Deepest level Rocks, Oman Mountains: U/Pb SHRIMP Evidence for Late Carboniferous Neotethys Rifting. Journal of Geology 113: 611-626

Konzett, J., Miller, C., Armstrong, R., Thöni, M., (2005) Metamorphic Evolution of Iron-rich Mafic Cumulates from the Ötztal-Stubai Crystalline Complex, Eastern Alps, Austria. Journal of Petrology 46(4): 717-747

Lange, U., Bröcker, M., Armstrong, R., Trapp, E., Mezger, K., (2005) Sm-Nd and U-Pb dating of high-pressure granulites from the Zlote and Rychleby Mts (Bohemian Massif, Poland and Czech Republic). Journal of Metamorphic Geology 23: 133-145

Lange, U., Brocker, M., Armstrong, R., Zelazniewicz, A., Trapp, E., Mezger, K., (2005) The orthogneisses of the Orlica-Snieznik complex (West Sudetes, Poland): geochemical characteristics, the importance of pre-Variscan migmatization and constraints on the cooling history. Journal of the Geological Society, London 162: 973-84

Laux, J., Pimentel, M., Dantas, E., Armstrong, R., Junges, S., (2005) Two neoproterozoic crustal accretion events in the Brasí­lia belt, central Brazil. Journal of South American Earth Sciences 18: 183-198

Lennox, P., Trzebski, R., Armstrong, R., Siebel, W., (2005) Structural evolution and granite chronology of the central Molong Zone, Eastern Lachlan Fold Belt, Australia. Australian Journal of Earth Sciences 52: 79-99

Master, S., Rainaud, C., Armstrong, R., Phillips, D., Robb, L., (2005) Provenance ages of the Neoproterozoic Katanga Supergroup (Central African Copperbelt), with implications for basin evolution. Journal of African Earth Sciences 42: 41-60

Noce, C., Zuccheti, M., Baltazar, O., Armstrong, R., Dantas, E., Renger, F., Lobato, L., (2005) Age of felsic volcanism and the role of ancient continental crust in the evolution of the Neoarchean Rio das Velhas Greenstone belt (Quadrilatero Ferrifero, Brazil): U-Pb zircon dating of volcaniclastic graywackes. Precambrian Research 141: 67-82

Poujol, M., Kiefer, R., Robb, L., Anhaeusser, C., Armstrong, R., (2005) New U-Pb data on zircons from the Amalia greenstone belt Southern Africa: insights into the Neoarchaean evolution of the Kaapvaal Craton. South African Journal of Geology 108: 317-332

Rainaud, C., Master, S., Armstrong, R., Robb, L., (2005) Geochronology and nature of the Palaeoproterozoic basement in the Central African Copperbelt ( Zambia and the Democratic Republic of Congo), with regional implications. Journal of African Earth Sciences 42: 1-31

Rainaud, C., Master, S., Armstrong, R., Phillips, D., Robb, L., (2005) Monazite U-Pb dating and 40Ar-39Ar thermochronology of metamorphic events in the Central African Copperbelt during the Pan-African Lufilian Orogeny. Journal of African Earth Sciences 42: 183-199

Seth, B., Armstrong, R., Büttner, A., Villa, I., (2005) Time constraints for Mesoproterozoic upper amphibolite facies metamorphism in NW Namibia: a multi-isotopic approach. Earth and Planetary Science Letters 230: 355-378

Shabeer, K., Satish-Kumar, M., Armstrong, R., Buick, I., (2005) Constraints on the Timing of Pan-African Granulite-Facies Metamorphism in the Kerala Khondalite Belt of Southern India: SHRIMP Mineral Ages and Nd Isotopic Systematics. Journal of Geology 113: 95-106

Eglington, B., Armstrong, R., (2004) The Kaapvaal Craton and adjacent orogens, southern Africa: a geochronological database and overview of the geological development of the craton, South African Journal of Geology, 107:13-32

Ewart, A., Marsh, J., Milner, S., Duncan, A., Kamber, B., Armstrong, R., (2004) Petrology and Geochemistry of Early Cretaceous Bimodal Continental Flood Volcanism of the NW Etendeka, Namibia. Part 2: Characteristics and Petrogenesis of the High-Ti Latite and High-Ti and Low Ti Voluminous Quartz Latite Eruptives, Journal of Petrology, 45(1):107-138

Ewart, A., Marsh, J., Milner, S., Duncan, A., Kamber, B., Armstrong, R., (2004) Petrology and Geochemistry of Early Cretaceous Bimodal Continental Flood Volcanism of the NW Etendeka, Namibia. Part 1: Introduction, Mafic Lavas and Re-evaluation of Mantle Source Components, Journal of Petrology, 45(1):59-105

Gray, D., Hand, M., Mawby, J., Armstrong, R., Miller, J., Gregory, R., (2004) Sm-Nd and Zircon U-Pb ages from garnet-bearing eclogites, NE Oman: constraints on High-P metamorphism, Earth and Planetary Science Letters, 222:407-422

Kokonyangi, J., Armstrong, R., Kampunzu, A., Yoshida, M., Okudaira, T., (2004) U-Pb zircon geochronology and petrology of granitoids from Mitwaba (Katanga, Congo): implications for the evolution of the Mesoproterozoic Kibaran belt, Precambrian Research, 132: 79-106

Laux, J., Pimentel, M., Dantas, E., Armstrong, R., Armele, A., Nilson, A., (2004) Mafic magmatism associated with the Goiás magmatic arc in the Anicuns region, Goiás, central Brazil: Sm-Nd isotopes and new ID-TIMS and SHRIMP U-Pb data, Journal of South American Earth Sciences, 16:599-614

Machowiak, K., Muszynski, A., Armstrong, R., (2004) High-level volcanic-granodioritic intrusions from Zelezniak Hill (Kaczawa Mountains, Sudetes, SW Poland), in Physical Geology of High-Level Magmatic Systems, Breitkreuz, C. and Petford, N. (eds) Special Publication no. 234, Geological Society of London, London, pp 67-74

Mapeo, R., Armstrong, R., Kampunzu, A., Ramokate, L., (2004) SHRIMP U-Pb zircon ages of granitoids from the Western Domain of the Kaapvaal Craton, Southeastern Botswana: implications for crustal evolution, South African Journal of Geology, 107:159-172

Mapeo, R., Ramokate, L., Armstrong, R., Kampunzu, A., (2004) U-Pb zircon age of the upper Palapye group (Botswana) and regional implications, Journal of African Earth Sciences, 40:1-16

McCourt, S., Kampunzu, A., Bagai, Z., Armstrong, R., (2004) The crustal architecture of Archaean terranes in Northeastern Botswana, South African Journal of Geology, 107:147-158

Pimentel, M.. Filho, C., Armstrong, R., (2004) SHRIMP U-Pb and Sm-Nd ages of the Niquelândia layered complex: Meso- (1.25 Ga) and Neoproterozoic (0.79 Ga) extensional events in central Brazil, Precambrian Research, 132:133-153

Augé, T., Cocherie, A., Genna, A., Armstrong, R., Guerrot, C. Mukherjee, M.M. and Patra, R.N. (2003)  Age of the Baula PGE mineralization (Orissa, India) and its implications concerning the Singhbhum Archaean nucleus. Precambrian Research, 121:85-101

Borg, G., Kärner, K., Buxton, M., Armstrong, R. and van der Merwe, S.W. (2003)  Geology of the Skorpion Supergene Zinc Deposit, Southern Namibia.  Economic Geology, 98:749-771

Eglington, B.M. and Armstrong, R.A.  (2003) Geochronological and isotopic constraints on the Mesoproterozoic Namaqua-Natal Belt: evidence from deep borehole intersections in South Africa. Precambrian Research, 125:179-189

>Eglington, B.M., Thomas, R.J., Armstrong, R.A. and Walraven, F.  (2003) Zircon geochronology of the Oribi Gorge Suite, KwaZulu-Natal, South Africa: constraints on the timing of trans-current shearing in the Namaqua-Natal belt. Precambrian Research, 123:29-46

Kisters A. F. M., Stevens, G., Dziggel, A and Armstrong, R.A. (2003)Extensional detachment faulting and core-complex formation in the southern Barberton granite–greenstone terrain, South Africa: evidence for a 3.2 Ga orogenic collapse. Precambrian Research, 127:355-378

Möller, A., Hensen, B.J., Armstrong, R.A., Mezger, K. and Ballèvre, M.  (2003)  U-Pb zircon and monazite age constraints on granulite-facies metamorphism and deformation in the Strangways Metamorphic Complex (central Australia).  Contrib. Min Pet., 145:406-423

Pimentel, M.M., Dantas, E.L., Fuck, R.A., Armstrong, R.A. (2003) SHRIMP and conventional U-Pb age, Sm-Nd isotopic characteristics and tectonic significance of the K-rich Itapuranga Suite in Goiás, Central Brazil. Anais da Academia Bras. de Ciências style='color:black'>, 75(1):97-108

Pimentel, M.M., Hollanda, M. B. M. and Armstrong, R. (2003) Shrimp U-Pb age and Sr-Nd isotopes of the Morro do Baú mafic intrusion: implications for the evolution of the Arenópolis volcano-sedimentary sequence, Goiás Magmatic Arc.  An. Acad. Bras. Ciênc., 75(3):331-339

Pimentel, M.M., Lindenmayer, Z.G., Laux, J.H., Armstrong, R.A., de Araújo, J.C. (2003) Geochronology and Nd isotope geochemistry of the Gameleira Cu-Au deposit, Serra dos Carajás, Brazil:  1.8-1.7 Ga hydrothermal alteration and mineralization. Jour South Am. Earth Sci., 15:803-813

Piuzana,  D., Pimentel, M.M., Fuck, R.A. and Armstrong, R.A. (2003a) SHRIMP U-Pb and Sm-Nd data for the Araxá Group and associated magmatic rocks: contsraints for the age of sedimentation and geodynamic context of the southern Brasília Belt, central Brazil. Precambrian Research, 125:139-160

Piuzana,  D., Pimentel, M.M., Fuck, R.A. and Armstrong, R.A. (2003b) Neoproterozoic granulite facies metamorphism and coeval granitic magmatism in the Brasilia Belt, Central Brazil: regional implications of new SHRIMP U–Pb and Sm–Nd data. Precambrian Research, 125:245-273

Rainaud, C., Master, S., Armstrong, R.A. and Robb, L.J. (2003) A cryptic Mesoarchaean terrane in the basement to the Central African Copperbelt.  Journ. Geol. Soc. Lond., 160:11-14

Seth, B., Armstrong, R.A., Brandt, S., Villa, I.M. and Kramers, J.D. (2003) Mesoproterozoic U–Pb and Pb–Pb ages of granulites in NW Namibia: reconstructing a complete orogenic cycle, Precambrian Research, 126:147-168

Steven, N. and Armstrong, R.A. (2003)  A metamorphosed Proterozoic carbonaceous shale-hosted Co-Ni-Cu deposit at Kalumbila, Kabompo Dome: the Copperbelt Ore Shale in northwest Zambia. Economic Geology, 98:893-909.

Armstrong, R.A., Vishnevsky, S. and Koeberl, C.  (2002) U-Pb analyses of zircons from the Popigai impact structure, Russia: first results. In: Impacts in Precambrian Shields, (eds.) Plado, J. and Pesonen, L.J. Springer-Verlag, Berlin Heidelberg, 109-116.

Bagai, Z., Armstrong, R. and Kampunzu, A.B. (2002) U-Pb single zircon geochronology of granitoids in the Vumba granite-greenstone terrain (NE Botswana):Implications for the evolution of the Archaean Zimbabwe craton.  Precambrian Research 118(3-4):149-168.

Camacho, A., Hensen, B.J. and Armstrong, R. (2002) Isotopic test of a thermally driven intraplate orogenic model, Australia. Geology 30/10:887-890.

Da Silva, L.C., Armstrong, R.A., Delgado, I.M., Pimentel, M., Arcanjo, J.B., De Melo, R.C., Teixeira, L.R., Jost, H., Filho, J.M.C. and Pereira, L.H.M. (2002)  Reavaliação da evolução geológica em terrenos Pré-Cambrianos Brasileiros com base em novos dados U-Pb SHRIMP, Parte I: limite Centro-Oriental do Craton São Francisco na Bahia.  Revista Brasileira de Geociencias, 32(4):501-512

Da Silva, L.C., Armstrong, R.A., Noce, C.M., Carneiro, M.A., Pimentel, M., Pedrosa-Soares, A.C., Leite, C.A., Vieira, V.S., Da Silva, M.A., De Castro Paes, V.J., and Filho, J.M.C. (2002) Reavaliação da evolução geológica em terrenos Pré-Cambrianos Brasileiros com base em novos dados U-Pb SHRIMP, Parte II: Orógeno Araçuai, Cinturão Mineiro e Cráton São Francisco Meridional.  Revista Brasileira de Geociencias, 32(4):513-528

Da Silva, L.C., Armstrong, R.A., Pimentel, M., Scandolara, J., Ramgrab, G., Wildner, W., Angelim, L.A.D.A., Vasconcelos, A.M., Rizzoto, G., Quadros, M.L.D.E.S., Sander, A. and De Rosa, A.L.Z. (2002)  Reavaliação da evolução geológica em terrenos Pré-Cambrianos Brasileiros com base em novos dados U-Pb SHRIMP, Parte III: Provincias Borborema, Mantiqueira Meridional E Rio Negro-Juruena. Revista Brasileira de Geociencias, 32(4), 529-544

Dziggel, A., Stevens, G., Poujol, M., Anhaeusser, C. R. and Armstrong, R.A. (2002)  Metamorphism of the granite-greenstone terrane south of the Barberton greenstone belt, South Africa: an insight into the tectono-thermal evolution of the `lower' portions of the Onverwacht Group. Precambrian Research 114:221-247.

Kisters, A.F.M., Belcher, R.W., Armstrong, R.A., Scheepers, R., Rozendaal, A. and Jordaan, L.S. (2002) Timing and kinematics of the Colenso Fault: The Early Paleozoic shift from collisional to extensional  tectonics in the Pan-African Saldania Belt, South Africa. South African Journal of Geology 105(3):257-270.

Königer, S. Lorenz, V. Stollhofen, H. and Armstrong, R.A. (2002) Origin, age and stratigraphic significance of distal fallout ash tuffs from the Carboniferous-Permian continental Saar-Nahe Basin (SW Germany).  International Journal of  Earth Sciences (Geol Rundsch) 91:341-356.

Mendonidis P., Armstrong R.A., Eglington B.M., Grantham G.H. and Thomas R.J. (2002) Metamorphic history and U-Pb zircon (SHRIMP) geochronology of the Glenmore Granite; implications for the tectonic evolution of the Natal metamorphic province. South African Journal of Geology 105(4):325-336.

Poujol, M., Anhaeusser, C.R. and Armstrong R.A. (2002) Episodic Granitoid emplacement in the Archaean Amalia-Kraaipan terrane, South Africa: confirmation from single zircon U-Pb geochronology. Journal of African Earth Sciences 35:147-161.

Reimold, W.U., Armstrong, R.A. and Koeberl, C. (2002) A deep drillcore from the Morokweng impact structure, South Africa: petrography, geochemistry, and constraints on the crater size. Earth and Planetary Science Letters 201:221-232.

Scheepers R. and Armstrong R. (2002) New U-Pb SHRIMP zircon ages of the Cape Granite Suite: implications for the magmatic evolution of the Saldania Belt. South African Journal of Geology, 105(3):241-256.

Stevens, G., Droop, G.T.R., Armstrong, R.A. and Anhaeusser, C.R. (2002)  Amphibolite facies metamorphism in the Schapenburg schist belt:  A record of the mid-crustal response to ~3.23 Ga terrane accretion in the Barberton greenstone belt. South African Journal of Geology 105(3):271-284.

Teklay, M., Berhe, K., Reimold, W.U., Armstrong, R., Asmerom, Y. and Watson, J. (2002) Geochemistry and geochronology of a Neoporterozoic Low-K tholeiite-boninite association in Central Eritrea. Gondwana Research, 5(3):597-611.

Thomas, R.J., Chevallier, L.P., Gresse, P.G., Harmer, R.E., Eglington, B.M., Armstrong, R.A., de Beer, C.H., Martini, J.E.J., de Kock, Macey, P.H. and Ingram, B.A. (2002)  Precambrian evolution of the Sirwa Window, Anti-Atlas Orogen, Morocco. Precambrian Research, 118(1-2):1-57.

Yibas, B., Reimold, W. U. Armstrong, R., Koeberl. C. and Phillips, D. (2002) The tectonostratigraphy, granitoid geochronology and geological evolution of the Precambrian of southern Ethiopia. Journal African Earth Sciences, 34:57-84.

Camacho, A., McDougall, I., Armstrong, R.A. and Braun, J. (2001) Evidence for shear heating, Musgrave Block, central Australia.  Journal of Structural Geology, 23:1007-1013.

de Waal, S.A., Maier, W.D, Armstrong, R.A. and Gauert, C.D.K (2001)  Parental magma and emplacement of the stratiform Uitkomst Complex, South Africa. Canadian Mineralogist 39(2):557-571.

Fischel, D.P., Pimentel, M.M., Fuck, R.A., and Armstrong, R. (2001) U-Pb SHRIMP and Sm-Nd geochronology of the Silvania volcanics and Jurubatuba granite: Paleoproterozoic juvenile magmatic rocks in the basement of the Brasília Belt, central Brazil. Anais da Academia Brasileira de Ciëncias, 73(4):390-399.

Key, R.M., Liyungu, A.K., Njamu, F.M., Somwe, V., Banda, J., Mosley, P.N. and Armstrong, R.A. (2001) The western arm of the Lufilian Arc in NW Zambia and its potential for copper mineralization. Journal of African Earth Sciences 33:503-528.

Manhica, A.D.S.T., Grantham, G.H, Armstrong, R.A. Guise, P.D. and Kruger, F.J. (2001)  Polyphase deformation and metamorphism at the Kalahari Craton – Mozambique Metamorphic Belt boundary.  In: Continental Reactivation and Reworking, eds. Miller, J.A. Holdsworth, R.E., Buick, I.S. and Hand, M, Geological Society of London Special Publication, 184:303-321.

Mapeo, R.B.M., Armstrong, R.A. and Kampunzu, A.B. (2001). SHRIMP U-Pb zircon geochronology of gneisses from the Gweta borehole, northeast Botswana: implications for the Palaeoproterozoic Magondi Belt in southern Africa.  Geological Magazine, 138(3):299-308.

McCourt, S., Hiliard, P., Armstrong, R.A. and Munyanyiwa, H. (2001) SHRIMP U-Pb zircon geochronology of the Hurungwe granite north-west Zimbabwe: age constraints on the timing of the Magondi orogeny and implications for the correlation between the Kheis and Magondi belts.  South African Journal of Geology 104(1):39-46.

Poujol. M., Anhaeusser, C.R. and Armstrong, R.A. (2001) Episodic granitoid emplacement in the Archaean Amalia-Kraaipan terrane, South Africa: confirmation from single zircon U-Pb geochronology. Journal of African Earth Sciences, 33(2):435-449.

Armstrong, R.A. and Wilson, A.H. (2000) A SHRIMP U-Pb study of zircons from the layered sequence of the Great Dyke, Zimbabwe, and a granitoid anatectic dyke. Earth and Planetary Science Letters, 180:1-12.

de Kock, G.S., Eglington, B., Armstrong, R.A., Harmer R.E. and Walraven, F. (2000) U-Pb and Pb-Pb ages of the Naauwpoort Rhyolite, Kawakerup Leptite and Okongava Diorite; implications for the onset of rifting and of orogenesis in the Damara Belt, Namibia. .  In Miller, R.M., Henno Martin Memorial Volume, Communications of the Geological Survey of Namibia 12:81-88.

de Waal, S.A. and Armstrong, R.A. (2000) The age of the Marble Hall diorite, its relationship to the Uitkomst Complex, and evidence for a new magma type associated with the Bushveld igneous event. South African Journal of Geology, 103(2):128-140.

Elworthy, T., Eglington, B.M., Armstrong, R.A. and Moyes, A.B. (2000) Rb-Sr isotope constraints on the timing of late to post-Archæan tectonometamorphism affecting the southeastern Kaapvaal Craton.  Journal of African Earth Sciences, 30:641-650. 

Goscombe, B., Armstrong, R. and Barton, J.M. (2000) Geology of the Chewore Inliers, Zimbabwe: constraining the Mesoproterozoic to Palaeozic evolution of the Zambezi Belt.  Journal of African Earth Sciences, 30:589-627.

Hoal, K.O., Hoal, B.G., Griffen, W.L. and Armstrong, R.A. (2000) Characterization of the age and nature of the lithosphere in the Tsumkwe region, Namibia.  In Miller, R.M., Henno Martin Memorial Volume, Communications of the Geological Survey of Namibia 12:21-28.

Jacob, R.E., Moore, J.M. and Armstrong, R.A. (2000)  Zircon and titanite age determinations from igneous rocks in the Karibib District, Namibia: implications for Navachab vein-style gold mineralization.  In Miller, R.M., Henno Martin Memorial Volume, Communications of the Geological Survey of Namibia 12:157-166.

Johnston, S.T., Gose, W.A., Thomas, R.J., Eglington, B.M. and Armstrong, R.A. (2000) New palaeomagnetic and age data from the southern Natal Belt, South Africa. In Kisters, A.F.M. and Thomas, R.J. (Eds) , Geocongress 2000; a new millennium on ancient crust; 27th Earth science congress of the Geological Society of South Africa, Journal of African Earth Sciences, 31(1A):35.

Kampunzu, A.B., Armstrong, R.A., Modisi, M.P. and Mapeo, R.B.M. (2000) Ion microprobe U-Pb ages on detrital zircon grains from the Ghanzi Group: implications for the identification of a Kibaran-age crust in northwest Botswana.  Journal of African Earth Sciences, 30:579-587.

Konzett, J. Armstrong, R.A., Günther, D. (2000) Modal metasomatism in the Kaapvaal craton lithosphere: constraints on timing and genesis from U-Pb zircon dating of metasomatized peridotites and MARID-type xenoliths. Contributions to Mineralogy and Petrology, 139(6):704-719.

Mapeo, R.B.M., Kampunzu, A.B. and Armstrong, R.A. (2000) Ages of detrital zircon grains from Neoproterozoic siliciclastic rocks in the Shakawe area: implications for the evolution of Proterozoic crust in northern Botswana. South African Journal of Geology, 103(2):156-161.

Pimentel, M.M, Jost, H., Armstrong, R., Fuck, R.A., Junges, S.L. and Resende, M.G. (2000) Re-appraisal of the Santa Rita greenstone belt stratigraphy, central Brazil, based on new U-Pb SHRIMP age and Sm-Nd data of felsic metavolcanic rocks.  Revista Brasileira de Geociências, 30(1):157-160.

Pirajno, F., Phillips, D. and Armstrong, R.A. (2000) Volcanology and eruptive histories of the Erongo volcanic complex and the Paresis igneous complex, Namibia; implications for mineral deposit styles. In Miller, R.M., Henno Martin Memorial Volume, Communications of the Geological Survey of Namibia 12:301-312.

Reimold, W.U., Koeberl, C., Brandstätter, F., Kruger, F.J., Armstrong, R.A. and Bootsman, K. (2000) The Morokweng Impact Structure, South Africa: geological, petrographical, and isotopic results, and implications for the size of the structure. Proceedings of the Second International Conference on Large Meteorite Impacts and Planetary Evolution (Sudbury 1997). Eds. B.O. Dressler and V.L. Sharpton, Geological Society of America Special Paper.

Robb, L.J., Freeman, L.A. and Armstrong, R.A. (2000). Nature and longevity of hydrothermal fluid flow and mineralisation in granites of the Bushveld Complex, South Africa.  Transactions of the Royal Society Edinburgh: Earth Science, 91:259-282.

Scherstén, A., Årebäck, H., Cornell, D., Hoskin, P., Åberg, A. and Armstrong, R. (2000) Dating mafic-ultramafic intrusions by ion-microprobing contact-melt zircon: examples from SW Sweden.  Contributions to Mineralogy and Petrology, 139:115-125.