Trends in Ocean S‐Isotopes May Be Influenced by Major LIP Events
Geophysical Monograph Series, Page 341-376., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Ross. R. Large +5 more
wiley +10 more sources
The first animals: ca. 760-million-year-old sponge-like fossils from Namibia [PDF]
South African Journal of Science, 2012 One of the most profound events in biospheric evolution was the emergence of animals, which is thought to have occurred some 600-650 Ma. Here we report on the discovery of phosphatised body fossils that we interpret as ancient sponge-like fossils and ...
C. Brain +9 more
doaj +2 more sources
Neoproterozoic chemostratigraphy
Precambrian Research, 2010 Chemostratigraphy has diverse applications to investigating the rock record, such as reconstructing paleoenvironments, determining the tectonic setting of sedimentary basins, indirect dating, and establishing regional or global correlations. Chemostratigraphy is thus an integral component of many investigations of the ancient sedimentary record.
Halverson, G. +3 more
openaire +3 more sources
Late Precambrian U-Pb titanite age for peak regional metamorphism and deformation (Knoydartian orogeny) in the western Moine, Scotland [PDF]
, 2003 There has been controversy over the number and timing of orogenies in the Precambrian Moine block in the Scottish Caledonides since the earliest radiometric dating in the 1960s. This work challenges a recent hypothesis, that this sector of the Laurentian
Tanner, P.W.G., Evans, J.A.
core +8 more sources
U-Pb geochronology of the Fort Augustus granite gneiss: constraints on the timing of Neoproterozoic and Palaeozoic tectonothermal events in the NW Highlands of Scotland [PDF]
, 2001 The West Highland granite gneiss suite in Inverness-shire, Scotland, represents a series of S-type, anatectic granites formed by partial melting of host Neoproterozoic metasediments of the Moine Supergroup.
Kinny, P.D. +4 more
core +9 more sources
Uncovering the Neoproterozoic carbon cycle [PDF]
Nature, 2012 Interpretations of major climatic and biological events in Earth history are, in large part, derived from the stable carbon isotope records of carbonate rocks and sedimentary organic matter. Neoproterozoic carbonate records contain unusual and large negative isotopic anomalies within long periods (10-100 million years) characterized by δ(13)C in ...
Johnston, David +4 more
openaire +4 more sources
Dynamics of the Neoproterozoic carbon cycle [PDF]
Proceedings of the National Academy of Sciences, 2003 The existence of unusually large fluctuations in the Neoproterozoic (1,000–543 million years ago) carbon-isotopic record implies strong perturbations to the Earth's carbon cycle. To analyze these fluctuations, we examine records of both the isotopic content of carbonate carbon and the fractionation between carbonate and marine organic carbon ...
Daniel H, Rothman +2 more
openaire +2 more sources
Current Biology, 2015 The Neoproterozoic era was arguably the most revolutionary in Earth history. Extending from 1000 to 541 million years ago, it stands at the intersection of the two great tracts of evolutionary time: on the one side, some three billion years of pervasively microbial 'Precambrian' life, and on the other the modern 'Phanerozoic' biosphere with its ...
openaire +2 more sources
A composite C-isotope profile for the Neoproterozoic Dalradian Supergroup of Scotland and Ireland [PDF]
, 2009 The Neoproterozoic Dalradian Supergroup is a dominantly siliciclastic metasedimentary succession in the Caledonian orogenic belt of Scotland and Ireland.
Fallick, A. E. +8 more
core +1 more source
Neoproterozoic to early Paleozoic extensional and compressional history of East Laurentian margin sequences:the Moine Supergroup, Scottish Caledonides [PDF]
, 2014 This work was in part supported by Natural Environment Research Council grant NE/J021822/1, National Science Foundation grant EAR-0087650, and funds from our respective institutions.Neoproterozoic siliciclastic-dominated sequences are widespread along ...
Merle, Renaud +21 more
core +1 more source