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    Bob Thomas

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    by Bob Thomas
    Geology of the Sivorg Terrane, Heimefrontfjella (East Antarctica), and new U-Pb Zircon provenance analyses of metasedimentary rocksmore
    by Bob Thomas
    Publication Date: 2009
    Publication Name: Polarforschung
    Research Interests:
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    Thomas, R.J. and Mawson, S.A., (1989). Newly discovered outcrops of Proterozoic basement rocks in northeast Transkei. S. Afr. J. Geol., 92, 369-376more
    by Bob Thomas
    Publication Name: South African Journal of Geology
    Research Interests:
    Thomas, R.J., (1986). Supracrustal-granitoid relationships in the Natal Sector of the Namaqua-Natal Mobile Belt in the Harding-Margate-Sezela-Highflats area, southern Natal. Ext. Abstr., Geocongress '86, Geol. Soc. S. Afr., Johannesburg, 1017-1020more
    by Bob Thomas
    Thomas, R.J., (1989) Geological mapping in high-grade terranes in a subtropical environment - the Proterozoic rocks of southern Natal. Winter Field School Guidebook., Geol. Soc. S. Afr., Pietermaritzburg, 46 ppmore
    by Bob Thomas
    Thomas, R.J. and Gain, S.B., (1989). The geological setting of gold mineralization at Dumisa, Natal. South African Journal of Geology, 92, 410-419more
    by Bob Thomas
    Publication Name: South African Journal of Geology
    Research Interests:
    Thomas, R.J. and Thomas, M.A. (1989). Geology of the Noenieput area. Explan. Sheet 2720 (Noenieput). Geol. Surv. S. Afr., 19 ppmore
    by Bob Thomas
    Newly discovered outcrops of Proterozoic basement rocks in northeastern Transkeimore
    by Bob Thomas
    ABSTRACT
    Publication Name: South African Journal of Geology
    Research Interests:
    Carte Géologique du Maroc au 1/50 000, feuille Douar Çour - Mémoire explicatifmore
    by Bob Thomas
    Thomas, R.J., Bullen, W., de Klerk, I.D. and Scogings, A.J. (1990). Distribution and genesis of precious and base metal mineralization in the Natal Metamorphic Province, South Africa. South African Journal of Geology, 93, 683-695more
    by Bob Thomas
    Publication Name: South African Journal of Geology
    Research Interests:
    Thomas, R.J. and Eglington, B.M. (1990). A Rb-Sr, Sm-Nd and U-Pb zircon isotopic study of the Mzumbe Suite, the oldest intrusive granitoid in southern Natal, South Africa. South African Journal of Geology, 93, 761-765more
    by Bob Thomas
    Publication Name: South African Journal of Geology
    Research Interests:
    Kerr, A. and Thomas, R.J. (1991). Rapakivi granites and charnockites from the Proterozoic mobile belt in Natal, South Africa. Ext. Abstr., Symposium, Rapakivi Granites and Related Rocks., IGCP 315, Helsinki, Finland, p. 45more
    by Bob Thomas
    Thomas, R.J. (1991). A recurrent control on sedimentation in southern Natal: the Dweshula basement high. Ext. Abstr., Conference on Inversion Tectonics of the Cape Fold Belt. Tectonics Division, Geol. Soc. S. Afr., Cape Town, 32-34more
    by Bob Thomas
    Thomas, R.J., Von Brunn, V. Marshall, C.G.A. and Strydom, D. (1990). Permo-Carboniferous glacigenic sediment gravity flows and related tectonics in southern Natal. Ext. Abstr. Geocongress '90, Geol. Soc. S. Afr., Cape Town, 554-557more
    by Bob Thomas
    Thomas, R.J., Marshall, C.G.A. Watkeys, M.K., Fitch, F. and Miller, J.A. (1992). K-Ar and Ar-Ar dating of the Natal Group: a post Pan-African molasse? Journal of African Earth Sciences, 15, 3/4, 453-471more
    by Bob Thomas
    Publication Name: Journal of African Earth Sciences
    Thomas, R.J., Eglington, B.M., Evans, M.J. and Kerr, A. (1992). The petrology of the Proterozoic Equeefa Suite, southern Natal, South Africa. South African Journal of Geology, 95, 116-130more
    by Bob Thomas
    Publication Name: South African Journal of Geology
    Research Interests:
    Jacobs, J., Thomas, R.J. and Weber, K. (1993). Accretion and indentation tectonics along the southern margin of the Kaapvaal Craton during the Kibaran (Grenville) Orogeny. Geology, 21, 203-206more
    by Bob Thomas
    Publication Name: Geology
    Research Interests:
    Grantham, G.H. and Thomas, R.J. (1994). A rapakivi-charnockite association in the Natal Metamorphic Province, South Africa. Abstr., Sixteenth General Meeting, International Mineralogical Association (IMA), Pisa, Italy, 125-126more
    by Bob Thomas
    Thomas, R.J., de Beer, C.H. and Bowring, S. (1995). A comparison between granitoids of the Spektakel Suite, Namaqualand and the Oribi Gorge Suite, Natal. Ext. Abstr., Geocongress '95, Geol. Soc. S. Afr., Johannesburg, 410-413more
    by Bob Thomas
    Jacobs, J., Thomas, R.J. and Weber, K. (1995). Grenvillian terrains in Western Dronning Maud Land and SE Africa and their enigmatic Pan-African overprint. Abstr., V11 International Symposium on Antarctic Earth Sciences, Siena, Italy, 210more
    by Bob Thomas
    Thomas, R.J., and Jacobs, J. (1996). Grenvillian and Pan-African problems in Eastern Africa. Abstr., Fourth IGCP No 348 International Field Workshop in Eritrea, Asmara, Eritrea, p. 40more
    by Bob Thomas
    The genesis of gold mineralisation in the Natal Thrust Belt, KwaZulu-Natal, South Africamore
    by Bob Thomas
    Thomas, R.J., Bauer, W., Jacobs, J., Spaeth, G. and Weber, K. (1996). Vergleich 1.1 Ga alter Terranes von Natal (Südafrika) und der Heimefrontfjella (Westneuschwabenland/Antarktika. TSK VI Salzburg, p. 422-425more
    by Bob Thomas
    Geology of the Mesoproterozoic Cape Meredith Complex, West Falklandmore
    by Bob Thomas
    Thomas, R.J. and Jacobs, J. (1999). Polymetamorphic history of the Namaqua-Natal-Falkland-Haag-Dronning Maud Land-Southern Mozambique belt: a tale of three orogenies, Abstract,3rd ICGP 368 Conference - “Orogenesis in the Outback”, Alice Springs, Australia, 120-121more
    by Bob Thomas
    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, S. Africa. Abstract, Geocongress 2000, Stellenbosch, South Africa J. Afr. Earth Sci., 31, 35-36more
    by Bob Thomas
    Publication Name: Journal of African Earth Sciences
    Thomas, R.J., Jacobs, J. and Eglington, B.M. (2000). Geochemistry and isotopic evolution of the Mesoproterozoic Cape Meredith Complex, West Falkland. Abstracts 31st International Geological Congress, Rio de Janeiro, Brazil. Abstratct on CD, unpaginatedmore
    by Bob Thomas
    Jacobs, J. and Thomas, R.J. (2000). A titanite fission track profile across the SE Kaapvaal Craton and the Mesoproterozoic Natal Metamorphic Province. Abstract, 18th Colloquium of African Geology, Graz, Austria. J. Afr. Earth Sci., 30, p. 42more
    by Bob Thomas
    Publication Name: Journal of African Earth Sciences
    Research Interests:
    Thomas, R.J.and Jacobs, J. (2000). A titanite fission track profile across the SE Kaapvaal Craton and the Natal Metamorphic Province: evidence for cryptic differential Meso- to Neoproterozoic tectonism. Abstract, Geocongress 2000, Stellenbosch, South Africa. J. Afr. Earth Sci., 31, 79-80more
    by Bob Thomas
    Publication Name: Journal of African Earth Sciences
    Eglington, B.M, Thomas, R.J., Armstrong, R.A., Harmer, R.E., Moen, H.F.G., De Beer, C.H. and Grantham, G.H. (2000). Development of the Namaqua-Natal Belt within Rodinia. Abstract, Geocongress 2000, Stellenbosch, South Africa J. Afr. Earth Sci., 31, 21-22more
    by Bob Thomas
    Publication Name: Journal of African Earth Sciences
    Research Interests:
    Grantham, G.H., Thomas, R.J., Eglington, B.M., Armstrong, R.A., Goedhart, M.L. (2004). The genesis of granitoids in the Semail Ophiolite Complex, United Arab Emirates - Geochemistry, timing and sources of the granitoids: new U-Pb SHRIMP, Rb-Sr, Sm-Nd, O-O and Pb/Pb isotope data. Abstract, 32nd In...more
    by Bob Thomas
    Thomas, R.J., Armstrong, R.A, and Grantham, G.H. (2002). Dating the Semail Ophiolite in Fujairah, United Arab Emitrates. Abstracts, Goecongress 2002, Windhoek, Namibia. p. 20more
    by Bob Thomas
    Macey, P.H., Gresse, P.G., Chevallier, L.C. and Thomas, R.J. (2002). Brittle tectonics and origin of mineralising fluids, Douar Çour region, central High Atlas, Morocco. Abstract, 19th Colloquium on African Geology, El Jadida, Morocco. p. 76more
    by Bob Thomas
    Cornell, D.H. Thomas, R..J. Gibson, R. Moen, H.F.G. Moore J.M. and Reid D.L. (2006): Namaqua-Natal Province. in Johnson, M.R., Anhauesser, C.R., Thomas, R.J (eds) The Geology of South Africa. Geological Society of South Africa, Johannesburg/Council for Geoscience, Pretoria, 325-379more
    by Bob Thomas
    Ueda, K., Jacobs, J., Thomas, R.J., Emmel, B., Matola, R. (2008). Late-tectonic evolution of the East-African-Antarctic Orogen in Northern Mozambique. Extended Abstract, 22nd Colloquium of African Geology, Hammamet, Tunisia, 75-76more
    by Bob Thomas
    Jacobs, J., Thomas, R.J., Bingen, B., Engvik, A., Horstwood, M., and Daudi, E. (2008). Tectono-metamorphic evolution of the East African-Antarctic Orogen in northern Mozambique and Dronning Maud land (East Antarctica). Abstract, Gondwana 13, Dali, China, p. 84more
    by Bob Thomas
    Goodenough, K.M., Thomas, R.J., De Waele, B., Key, R.M., and Jacobs, J. (2009). Cambrian post-tectonic granitoid magmatism in northern Madagascar. Abstract, International Colloquium 3 Ma, Beni Mellal,, Morocco, 73-74more
    by Bob Thomas
    127) Jacobs, J., Thomas, R.J., Kosuke, U., Kleinhanns, I., Emmel, B. and Rajeev, K. (2009). Coupled delamination and indentor-escape tectonics in the southern part of the c. 650-500 Ma East African/Antarctic Orogen. Geological Society of America, Abstracts with Programs, Portland, 41 (7) p. 178more
    by Bob Thomas
    Denudation in Southern Malawi and Northern Mozambique: Indications of the Long-Term Tectonic Segmentation of East Africa During the Gondwana Break-Upmore
    by Bob Thomas
    Research Interests:
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    Lee, J.R.; Thomas, R.J.; Burke, H.F.; Farrant, A.R.; Price, S.J.; Goodenough, K.M.. 2012 Geology of the Ghayathi 1:100 000 map sheet, 100-29, United Arab Emirates. Nottingham, UK, British Geological Survey, 55 ppmore
    by Bob Thomas
    Chevallier, L.P., Gresse, P.G., Macey, P, Thomas, R.J., Harmer, R.E., Armstrong, R.A. and Eglington, B.M. (2001). Notice Explicatif pour Carte Géologique du Maroc au 1/50 000 feuille Douar Cour. Notes et Mémoires Serv. Geol. Maroc, No. 421, 178 ppmore
    by Bob Thomas
    Macey, P.H., Thomas, R.J., Grantham, G.H., Ingram, B., Jacobs, J., Armstrong, R.A., Roberts, M.P., Hollick, L., Bingen, B., de Kock, G., Bjerkgård, T., Henderson, I., Cronwright, M., Solli, A., Nordgulen, Ø., Viola, G., Motuza, G., Daudi, E.X.. and Manhica, V. (2009). Mesoproterozoic geology of t...more
    by Bob Thomas
    Farrant, A.R.; Price, S.J.; Lee, J.R.; Goodenough, K.M.; Thomas, R.J.; Merritt, J.E.; Burke, H.F.; Newell, A.J.. 2012 Geology of the Bu Hasa 1:100 000 map sheet, 100-25, United Arab Emirates. Nottingham, UK, British Geological Survey, 43 ppmore
    by Bob Thomas
    Thomas, R.J., Horstwood, M.S.A., Bushi, A.M. and Mruma, A. (2011). A. Geochronological constraints on the eastern margin of the Tanzanian Craton in the Dodoma-Mpwapwa area. Abstract, Geosynthesis, Cape Town, 42-43more
    by Bob Thomas
    Geology of the Kottas Terrane, Heimefrontfjella (East Antarctica)more
    by Bob Thomas
    Publication Date: 2009
    Publication Name: Polarforschung
    Research Interests:
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    A note on the discovery of two new nunataks in southernmost Heimefrontfjellamore
    by Bob Thomas
    Publication Date: 2009
    Publication Name: Polarforschung
    Research Interests:
    Download (.pdf)
    A tale of two tectonic terranesmore
    by Bob Thomas
    ABSTRACT
    Publication Name: South African Journal of Geology
    Research Interests:
    Mzimlilo Granitemore
    by Bob Thomas
    Bullen, W.D., Thomas, R.J. and Scogings, A.J. (1992). The geological setting of industrial mineral deposits in the Natal Metamorphic Province. South African Journal of Geology, 95, 51-59more
    by Bob Thomas
    Publication Name: South African Journal of Geology
    Research Interests:
    Banana Beach Gneissmore
    by Bob Thomas

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