Table Of Content

Precambrian Research http://www.elsevier.com/locate/precamres ELSEid VIER Volumes 220-221 CONTENTS November 2012 (Abstracts/contents lists published in Am. Geol. Inst. Bibliogr.; Abstr. Bull. Signaletique; Chem. Abstr.; Curr. Contents; Phys Chem. Earth Sci., Geo Abstr.; Mineral Abstr.) Seismic signatures of an altered crust and a normal transition zone structure beneath the Godavari rift A. Singh, M.R. Kumar, N. Kumar, D. Saikia, RPS olomon Raju, D. Srinagesh, N.P. Rao and D. Sarkar Grenville-age orogenesis in the Qaidam-Qilian block: The link between South China and Tarim S. Song, L. Su, X.-h. Li,¥ .N iu and L. Zhang Formation age and metamorphic history of the Nuvvuagittugq Greenstone Belt J. O’Neil, R.W. Carlson, J.-L. Paquette and D. Francis Neoproterozoic continental accretion in South China: Geochemical evidence from the Fuchuan ophiolite in the Jiangnan orogen S.-B. Zhang, R.-X. Wu and Y.-F Zheng Late-Neoarchean magmatism and metamorphism at the southeastern margin of the North China Craton and their tectonic implications A.-D. Wang, Y.-C. Liu, X.-F Gu, Z.-H. Hou and B. Song Carbon isotope geochemistry and geochronological constraints of the Neoproterozoic Sirohi Group from northwest India R. Purohit, D. Papineau, A. Kroner, K.K. Sharma and A.B. Roy Complex Precambrian crustal evolution beneath the northeastern Yangtze Craton reflected by zircons from Mesozoic volcanic rocks of the Fanchang basin, Anhui Province H. Tang, J. Zheng, W.L. Griffin,Y ¥.S u, C.Y u and H. Ren Geology of an Archaean accretionary complex - The structural record of burial and return flow in the Tartoq Group of South West Greenland A.FM. Kisters, V.J. van Hinsberg and K. Szilas New age, geochemical and paleomagnetic data on a 2.21 Ga dyke swarm from south India: Constraints on Paleoproterozoic reconstruction A. Kumar, E. Nagaraju, J. Besse and Y.J.B. Rao Geochronological and geochemical constraints on the metasomatised source for the Neoproterozoic (~825 Ma) high-mg volcanic rocks from the Cangshuipu area (Hunan Province) along the Jiangnan domain and their tectonic implications Y. Zhang,Y .W ang,W . Fan, A. Zhang and L. Ma ...............ccceeeeeee BER a Oe Rete ORE Pare eS Pere Re ERR TE CEES POE REM YE OORT oe Geochronology, geochemistry and petrogenesis of Neoproterozoic basalts from Sugetbrak, northwest Tarim block, China: Implications for the onset of Rodinia supercontinent breakup Z. Zhang, J. Kang,T . Kusky, M. Santosh, H. Huang, D. Zhang and J. Zhu Metamorphic P-T path and tectonic implications of medium-pressure pelitic granulites from the Jiaobei massif in the Jiao-Liao-Ji Belt, North China Craton PY.Tam, G. Zhao, M. Sun, S. Li,Y . lizuka, G.S. Ma, C. Yin, ¥.H e and M. Wu (Contents continued on BM 1) CAPTION FOR COVER PHOTOGRAPH 3,243 million-year-old spherules in the Fig Tree Group, Barberton Greenstone Belt, South Africa, formed as a result of large meteorite impacts on the early Earth. The 35-cm-thick spherule bed (S3) is composed of nearly pure spherules produced during the condensation of an impact-produced rock vapor cloud. The estimated diameter of the bolide was 20-50 km. The spherules, 0.5-1.5 mm in diameter in the photo, include silica-(clear), phyllosilicate- (gray), and rutile/anatase-rich (black) varieties; massive and layered types; and a few originally hollow spherules. This is one of four spherule layers in the Barderton Belt, ranging from 3,470-3,243 Ma, that represent the oldest known impact deposits and provide direct evidence for a significant flux of large impactors as late as 3.2 Ga. Photograph: D.R. Lowe QA A Svcailiabvlee ornlsinee aSt cwwiw.escniecneceDdiirercte.ccotm (Contents continued from back cover) Diversity of Rhyacian granitoids in the basement of the Neoproterozoic-Early Cambrian Gurupi Belt, northern Brazil: Geochemistry, U-Pb zircon geochronology, and Nd isotope constraints on the Paleoproterozoic magmatic and crustal evolution E.L. Klein, J.B. Rodrigues, E.C.S. Lopes and G.L. Soledade Earliest Neoproterozoic (ca. 1.0 Ga) arc-back-arc basin nature along the northern Yunkai Domain of the Cathaysia Block: Geochronological and geochemical evidence from the metabasite A. Zhang,Y .W ang, W. Fan,Y . Zhang and J. Yang Taphonomy of very ancient microfossils from the ~3400 Ma Strelley Pool Formation and ~1900 Ma Gunflint Formation: New insights using a focused ion beam D. Wacey, S. Menon, L. Green, D. Gerstmann, C. Kong, N. Mcloughlin, M. Saunders and M. Brasier