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Integrated Terrane Analysis & Tectonic Synthesis

Contribution to Tectonic studies involving the integration of structural, metamorphic and chronologic datasets:

Investigation of orogenic belts by Integrated Terrane Analysis: characterization of component terranes using an integrated suite of metamorphic - deformation - chronology - intrusive - stratigraphic datasets to constrain tectonic evolution. Combination of both metamorphic and structural expertise has resulted in integrated studies that have made significant contributions on the tectonic evolution and crustal processes operating within orogenic systems; specifically the Himalayan Metamorphic Front (Goscombe & Hand, 2000, Goscombe et al., 2006), Arunta Inlier (Goscombe, 1991, 1992a,b,c), the transpressional Kaoko Belt (Goscombe et al., 2003a,b, 2005, 2006), Damara Orogen (Goscombe et al., 2004), Zambezi Belt (Goscombe et al., 1994, 1998, 2000), Mozambique Belt (Goscombe et al. 2003c), Mid-ocean ridge processes and Indo-Australian/Pacific plate margin (Goscombe & Everard, 1999, 2001) and NE Tasmania (Goscombe et al., 1994). Work in the Kaoko Belt has been able to document the 3D structure of the entire Kaoko Belt and recognised lower-crustal lateral extrusion in this transpressional system (Goscombe et al., 2005, 2006). Models for gold-mineralization in the east Yilgarn Craton have been developed, that involve the inter-relationship between thermal, barometric, intrusive, fluid and deformation evolution in different parts of the craton (Goscombe et al., 2007).
 

Integrated Terrane Analysis Publications:

  • Goscombe B.D., Armstrong R. & Barton J.M. 1998. Tectonometamorphic evolution of the Chewore Inliers: Partial re-equilibration of high-grade basement during the Pan-African Orogeny. Journal of Petrology 39, 1347-1384.
  • Goscombe B.D. & Hand, M. 2000. Contrasting P-T paths in the Eastern Himalaya, Nepal: Inverted isograds in a Paired Metamorphic Mountain Belt. Journal of Petrology 41(12), 1673-1719.
  • Goscombe B.D., Hand M., Gray D., Mawby, J. 2003. The metamorphic architecture of a transpressional orogen: the Kaoko Belt, Namibia. J. Petrology 44, 679-711.
  • Goscombe B.D., Gray D. & Hand M. 2004. Variation in metamorphic style along the northern margin of the Damara Orogen, Namibia. J. Petrology 45, 1261-1295.
    • Goscombe B.D., Gray D., Hand M. 2005. Extrusional tectonics in the core of a transpressional orogen, the Kaoko Belt, Namibia. J. Petrology 46, 1203-1241.
    • Goscombe B., Gray D., Armstrong R., Foster D,, Vogl J. 2005. Event geochronology of the Pan-African Kaoko Belt, Namibia. Precambrian research 140, e1-e41.
  • Goscombe B., Gray D. & Hand M. 2006. Crustal architecture of the Himalayan Metamorphic Front in eastern Nepal. Gondwana research. 3.
  • Goscombe B., Blewett R., Czarnota K., MaasR., Groenewald B. 2007. Broad thermo-barometric evolution of the eastern Yilgarn Craton. Kalgoorlie Conference.

 

Tectonic Synthesis Publications:

  • Goscombe B.D. & Everard J.L. 1999. Macquarie Island mapping reveals three tectonic phases. EOS 80(5), 50 & 55.
  • Goscombe B.D., Armstrong R. & Barton J.M. 2000. Geology of the Chewore Inliers: Constraining the 589-627.
  • Goscombe B.D. & Gray D. 2006. Crustal scale shear zones, oblique convergence and exotic arc-terrane: Kaoko Belt, Namibia. Precambrian Res. In review.
  • Jones R.R., Holdsworth R.E., Hand M. & Goscombe B. 2006. Crustal extrusion in orogens: channel flow or tectonic extrusion? Geol. Soc. Lond. Spec. Publ.
  • Gray D., Foster D., Spaggiari C., Gregory R., Goscombe B. & Hoffmann K.H. 2006. Continental growth in accretionary orogens involving large turbidite fans. Geological Society of America Special Publication on Continental Growth.
  • Gray, D., Foster, D.A., Goscombe, B.D., Passchier, C. & Trouw, R. 2006. 40Ar/39Ar thermochronology of the Damara Orogen, Namibia, South West Africa, with implications for tectono-thermal evolution. Precambrian Research.
  • Gray, D. & Goscombe, B.D. 2006. Contrasting styles of crustal compression in the Neoproterozoic Pan-African Damara Orogen, Namibia, SW Africa: example of a collisional triple junction. Geological Society of London, Special Publication on Western Gondwana. Manuscript in review.
  • Clark C., Kelsey D., Hand, M., Goscombe B. High-grade reworking of granulites in the Arunta Province: implications for Proterozoic assembly of central Australia.
  • Goscombe, B.D. & Gray, D. 2007. The coastal Terrane of the Kaoko Belt, Namibia: outboard arc-terrane and tectonic significance. Precambrian Research.