Skip to content

Research at St Andrews

Tectonostratigraphy of the lesser Himalaya of Bhutan: Implications for the along-strike stratigraphic continuity of the northern Indian margin

Research output: Contribution to journalArticle

DOI

Author(s)

Sean Long, Nadine McQuarrie, Tobgay Tobgay, Catherine Rose, George Gehrels, Djordje Grujic

School/Research organisations

Abstract

New mapping in eastern Bhutan, in conjunction with U-Pb detrital zircon and delta;13C data, defines Lesser Himalayan tectonostratigraphy. The Daling-Shumar Group, 2-6 km of quartzite (Shumar Formation) overlain by 3 km of schist (Daling Formation), contains ~1.8-1.9 Ga intrusive orthogneiss bodies and youngest detrital zircon peaks, indicating a Paleoproterozoic deposition age. The Jaishidanda Formation, 0.5-1.7 km of garnet-biotite schist and quartzite, stratigraphically overlies the Daling Formation beneath the Main Central thrust, and yields youngest detrital zircon peaks ranging from ~0.8-1.0 Ga to ca. 475 Ma, indicating a Neoproterozoic-Ordovician(?) deposition age range. The Baxa Group, 2-3 km of quartzite, phyllite, and dolomite, overlies the Daling-Shumar Group in the foreland, and yields ca. 0.9 Ga to ca. 520 Ma youngest detrital zircon peaks, indicating a Neoproterozoic-Cambrian(?) deposition age range. Baxa dolomite overlying quartzite containing ca. 525 Ma detrital zircons yielded delta;13C values between +3‰ and +6‰, suggesting deposition during an Early Cambrian positive δ13C excursion. Above the Baxa Group, the 2-3 km thick Diuri Formation diamictite yielded a ca. 390 Ma youngest detrital zircon peak, suggesting correlation with the late Paleozoic Gondwana supercontinent glaciation. Finally, the Permian Gondwana succession consists of sandstone, siltstone, shale, and coal. Our deposition age data from Bhutan: (1) reinforce suggestions that Paleoproterozoic (~1.8-1.9 Ga) Lesser Himalayan deposition was continuous along the entire northern Indian margin; (2) show a likely east ward continuation of a Permian over Cambrian unconformity in the Lesser Himalayan section identified in Nepal and northwest India; and (3) indicate temporal overlap between Neoproterozoic-Paleozoic Lesser Himalayan (proximal) and Greater Himalayan-Tethyan Himalayan (distal) deposition.

Close

Details

Original languageEnglish
Pages (from-to)1406-1426
Number of pages21
JournalGeological Society of America Bulletin
Volume123
Issue number7-8
DOIs
StatePublished - Jul 2011

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Snowball Earth climate dynamics and Cryogenian geology-geobiology

    Hoffman, P. F. , Abbot, D. S. , Ashkenazy, Y. , Benn, D. I. , Brocks, J. J. , Cohen, P. A. , Cox, G. M. , Creveling, J. R. , Donnadieu, Y. , Erwin, D. H. , Fairchild, I. J. , Ferreira, D. , Goodman, J. C. , Halverson, G. P. , Jansen, M. F. , Le Hir, G. , Love, G. D. , Macdonald, F. A. , Maloof, A. C. , Partin, C. A. & 7 others Ramstein, G., Rose, B. E. J., Rose, C. V., Sadler, P. M., Tziperman, E., Voigt, A. & Warren, S. G. 8 Nov 2017 In : Science Advances. 3, 11, 44 p., e1600983

    Research output: Contribution to journalArticle

  2. Spatial Heterogeneity in Sulfur Isotopes: Implications for Modern Environments and Paleoenvironmental Reconstructions

    Fike, D. A., Rose, C., Gao, J. & Aller, R. C. 2017 In : Chemical Geology.

    Research output: Contribution to journalArticle

  3. Carbon and Sulfur Cycling During the Silurian Ireviken Event: Insights from Gotland, Sweden

    Rose, C., Beaudoin, C., Fischer, W. W., Finnegan, S. & Fike, D. A. 2017 In : Geochimica et Cosmochimica Acta.

    Research output: Contribution to journalArticle

  4. Rethinking the ancient sulfur cycle

    Fike, D. A., Bradley, A. S. & Rose, C. V. 30 May 2015 In : Annual Review of Earth and Planetary Sciences. 43, p. 593-622 30 p.

    Research output: Contribution to journalArticle

  5. The end-cryogenian glaciation of South Australia

    Rose, C. V., Maloof, A. C., Schoene, B., Ewing, R. C., Linnemann, U., Hofmann, M. & Cottle, J. M. 2013 In : Geoscience Canada. 40, 4, p. 256-293 38 p.

    Research output: Contribution to journalArticle

Related by journal

  1. Reconstructing Early Permian tropical climates from chemical weathering indices

    Yang, J., Cawood, P. A., Du, Y., Li, W. & Yan, J. May 2016 In : Geological Society of America Bulletin. 128, 5-6, p. 739-751 13 p.

    Research output: Contribution to journalArticle

  2. Neoproterozoic to early Paleozoic extensional and compressional history of East Laurentian margin sequences: the Moine Supergroup, Scottish Caledonides

    Cawood, P. A., Strachan, R. A., Merle, R. E., Millar, I. L., Loewy, S. L., Dalziel, I. W. D., Kinny, P. D., Jourdan, F., Nemchin, A. A. & Connelly, J. N. 2015 In : Geological Society of America Bulletin. 127, 3-4, p. 349-371

    Research output: Contribution to journalArticle

  3. Detrital zircon geochronology of the Grenville/Llano foreland and basal Sauk Sequence in west Texas, USA

    Spencer, C. J., Prave, A. R., Cawood, P. A. & Roberts, N. M. W. 1 Jul 2014 In : Geological Society of America Bulletin. 126, 7-8, p. 1117-1128 12 p.

    Research output: Contribution to journalArticle

  4. The continental record and the generation of continental crust

    Cawood, P. A., Hawkesworth, C. & Dhuime, B. P. M. Jan 2013 In : Geological Society of America Bulletin. 125, 1-2, p. 14-32

    Research output: Contribution to journalArticle

  5. The Laurentian record of Neoproterozoic glaciation, tectonism, and eukaryotic evolution in Death Valley, California

    Macdonald, F. A., Prave, T., Petterson, R., Smith, E., Pruss, S. B., Oates, K., Waechter, F., Trotzuk, D. & Fallick, A. E. 2013 In : Geological Society of America Bulletin. 125, 7-8, p. 1203-1223

    Research output: Contribution to journalArticle

ID: 250641462