Table Of Content

Precambrian Research http://www.elsevier.com/locate/precamres | VOLUMES 200-203 CONTENTS April 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.) Exceptionally preserved microbially induced sedimentary structures from the Ediacaran post-glacial successions in the Kimberley region, northwestern Australia Z.-W. Lan and Z.-Q. Chen Geochemistry and zircon U-Pb geochronology of Paleoproterozoic arc related granitoid in the Northwestern Yangtze Block and its geological implications Y. Wu, S. Gao, H. Zhang, J. Zheng, X. Liu, H. Wang, H. Gong, L. Zhou and H. Yuan Marinoan glaciation in east central Brazil F.d.A. Caxito, G.P. Halverson, A. Uhlein, R. Stevenson,T . Gongalves Dias and G.J. Uhlein Paleoproterozoic structural evolution of the southern segment of the Jiao-Liao-Ji Belt, North China Craton S. Li, G. Zhao, M. Santosh, X. Liu, L. Dai, Y¥.S uo, PY. Tam, M. Song and P.W ang Revisiting thrusting, reverse faulting and transpression in the southern Sudbury Basin, Ontario T. Santimano and U. Riller Chemostratigraphy of the Late Mesoproterozoic Atar Group, Taoudeni Basin, Mauritania: Muted isotopic variability, facies correlation, and global isotopic trends L.C. Kah, J.K. Bartley and D.A. Teal New SHRIMP U-Pb zircon ages and CHIME monazite ages from South Harris granulites, Lewisian Complex, NW Scotland: Implications for two stages of zircon formation during Palaeoproterozoic UHT metamorphism S. Baba, D.J. Dunkley,T .H okada, K. Horie, K. Suzuki and K. Shiraishi Regressive depositional architecture on a Mesoproterozoic siliciclastic ramp: Sequence stratigraphic and Nd isotopic evidences from Bhalukona Formation, Singhora Group, Chhattisgarh Supergroup, central India PP. Chakraborty, P. Das, K. Das, S. Saha and S. Balakrishnan Re-Os and U-Pb constraints on gold mineralisation events in the Meso- to Neoarchaean Stor@ greenstone belt, Storg, southern West Greenland A. Scherstén, K. Szilas, R.A. Creaser, T.N eeraa, J.A.M. van Gool and C. Ostergaard Bimodal volcanism at the western margin of the Kaapvaal Craton in the aftermath of collisional events during the Namaqua-Natal Orogeny: The Koras Group, South Africa R. Bailie, H.M. Rajesh and J. Gutzmer Precambrian crustal evolution of the eastern North China Craton as revealed by U-Pb ages and Hf isotopes of detrital zircons from the Proterozoic Jing’eryu Formation J.-F Sun, J.-H. Yang, F-Y. Wu and S.A. Wilde Cooling and exhumation history of the northeastern Gawler Craton, South Australia C.J. Forbes, D. Giles, F Jourdan, K. Sato, S. Omori and M. Bunch 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 NAA ASvaciliabVlee ronsliene aSt cwwiw.esncicenecDediirrecetc.ctom