Late Neoproterozoic
Modelling the long-term carbon cycle, atmospheric CO2, and Earth surface temperature from late Neoproterozoic to present day
... general trend as is observed in the data but cannot reproduce the mag- nitude of the rise between the Tonian and Cambrian. This is potentially due to uncertainty in the rates of basalt weathering for the late ...
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Signatures of Late Neoproterozoic Gondwana assembly and Maronian glaciation in Lesser Himalaya: a palaeogeographical and stratigraphical approach
... of Late Neoproterozoic successions in Lesser Himalaya are com- bined herein with palaeogeographical considerations and comparisons with equivalent successions in India and South ...the Neoproterozoic ...
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Metamorphism of Late Neoproterozoic-Early Cambrian Schists in Southwest of Zanjan from the Soltanieh Belt in Northwest of Iran
... of Late Neoproterozoic-Early Cambrian schsits and also to clarify the geodynamic evolution of the region and to investigate the possible metamorphic evolution of Kahar type ...
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Re Os geochronology of the Neoproterozoic Cambrian Dalradian Supergroup of Scotland and Ireland: Implications for Neoproterozoic stratigraphy, glaciations and Re Os systematics
... the Neoproterozoic is the increased oxygenation of deep waters during the late Neoproterozoic (Canfield and Teske, 1996; Anbar and Knoll, 2002; Canfield et ...of Neoproterozoic seawater ...
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Geochemical and Geodynamic Implications of Mafic Dykes of the Iguerda Inlier (Central Anti Atlas, Morocco)
... the Neoproterozoic basic rocks consist dominantly of dolerite dykes intruded the Palæoproterozoic basement and overlain by the late Neoproterozoic ...
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Selenium isotope evidence for progressive oxidation of the Neoproterozoic biosphere
... the late Neoproterozoic Era 1 , alongside low-latitude ‘Snowball Earth’ glaciations and the emergence of metazoans 2 ...first Neoproterozoic glaciation, the Sturtian, occurring B716 Myr ago 1,3,4 ...
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Selenium isotope evidence for progressive oxidation of the Neoproterozoic biosphere
... the late Neoproterozoic Era 1 , alongside low-latitude ‘Snowball Earth’ glaciations and the emergence of metazoans 2 ...first Neoproterozoic glaciation, the Sturtian, occurring B716 Myr ago 1,3,4 ...
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Neoproterozoic and Cambrian continental rifting, continent arc collision and post collisional magmatism
... The timing of sedimentation is unknown, but presumed to be Cambrian or even Late Neoproterozoic. Protoliths of the Glenelg River Complex rocks, and less deformed and metamorphosed rocks further west, are ...
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Reconstructing Cryogenian to Ediacaran successions and paleogeography of the South China Block
... the Neoproterozoic, the Yangtze and Cathaysia blocks experienced independent histories (Shu, 2006; Zhao and Cawood, ...early Neoproterozoic fold ...and late Neoproterozoic-early Paleozoic ...
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Selenium isotope evidence for progressive oxidation of the Neoproterozoic biosphere
... the late Neoproterozoic Era 1 , alongside low-latitude ‘Snowball Earth’ glaciations and the emergence of metazoans 2 ...first Neoproterozoic glaciation, the Sturtian, occurring B716 Myr ago 1,3,4 ...
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From Nuna to Gondwana : a critical assessment of the early tectonic history of Tasmania
... the late Neoproterozoic geology of Tasmania to southwest Laurentia and East Antarctica further strengthens the ties between these three blocks within an assembled ...early Neoproterozoic convergence ...
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Preserved Sm Nd Isotopic Composition as Useful Provenance Indicators in Neoproterozoic Sandstones in the Voltaian Basin, Ghana
... The provenance of sandstones derived from the Lower Voltaian Kwahu-Morago Group and the Middle Voltaian Oti- Pendjari Group of the Neoproterozoic Voltaian Basin are discriminated by their Sm-Nd Isotopic ...
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Sol Hamed ophiolitic complex, southern Eastern
... Khedr MZ, A.S., Origin of Neoproterozoic ophiolitic peridotites in south Eastern Desert, Egypt, 689. constrained from primary mantle mineral chemistry.[r] ...
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Molecular identification of fungi microfossils in a Neoproterozoic shale rock
... angle branching and, possibly, anastomosing filaments (Figs. 1 and 2 and fig. S1), common features of fungal networks yet rare for pro- karyotes. The width of filaments for extant and fossil fungi can easily range from 2 ...
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Duration and nature of the end Cryogenian (Marinoan) glaciation
... Neoproterozoic Ghaub Formation, Namibia: constraints on Marinoan glaciation: Geology, v... Hoffmann, K.H., and Prave, A.R., 1996, A preliminary note on a revised subdivision and regional[r] ...
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Continental carbonate facies of a Neoproterozoic panglaciation, north east Svalbard
... Carbon and oxygen stable isotope data are presented here as δ13C and δ18O in parts per... and other isotope analyses will be presented elsewhere..[r] ...
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The initiation of Neoproterozoic “snowball” climates in CCSM3: the influence of paleocontinental configuration
... the Neoproterozoic interval has provided strong stimulus for the continuing effort to develop an alternative explanation to the hard snowball hypothesis for these deep glaciation events (Runnegar, 2000; Corsetti ...
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Application of Magnetic Survey in the Investigation of Iron Ore Deposits and Shear Zone Delineation: Case Study of Mutomo Ikutha Area, SE Kenya
... The main objective of this research was to use ground magnetic survey to delineate shear zone and iron ore deposit within the Neoproterozoic rocks of Mutomo-Ikutha area of south eastern Kenya. Total field magnetic ...
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Natural Graphite from Neoproterozoic Psammitic Gneiss, Inanalo Mountain, Southern Madagascar
... Short-range order parameters, crystallinity, degree of graphitisation and peak metamorphic temperature obtained from the Madagascar samples.. obtained from the core samples[r] ...
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Do Neoproterozoic tuffs (Moine) calc silicate rocks represent metamorphosed tuffs? A geochemical re appraisal
... Table Captions Table 1 Average values of major element oxides for calc-silicate rocks published data and from this work, Neoproterozoic tuffs and Moine metasediments Table 2 Mineralogica[r] ...
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