Advances in sediment geochemistry and chemostratigraphy for reservoir characterization
Energy Geoscience, 2021 Sedimentary sequences preserve the records of changes in major controls of sedimentation namely, tectonics, climate, relative sea level and sediment production and preservation.
Mu Ramkumar, R Nagarajan, M Santosh
exaly +4 more sources
Localized and Transient Oxygenation of Shallow Oceans of Southwestern Laurentia at the Ediacaran-Cambrian Boundary. [PDF]
GeobiologyABSTRACT The Ediacaran–Cambrian boundary, which precedes one of the most significant biotic diversification events in Earth's history, is associated with a global negative carbon isotope excursion termed the BAsal Cambrian carbon isotope Excursion (BACE).
Chanchai W +6 more
europepmc +2 more sources
Geophysical Monograph Series, Page 1-26., 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.
Richard E. Ernst +8 more
wiley +8 more sources
The Depositional RecordEstablishing along‐strike correlations of event deposits in deep‐sea environments allows for the reconstruction of spatial and temporal patterns of geological processes, such as seismically triggered turbidites.
Jyh‐Jaan Steven Huang +4 more
doaj +2 more sources
An integrative biostratigraphic, chemostratigraphic, and sequence stratigraphic perspective of the Ordovician–Silurian boundary on Anticosti Island (Canada) [PDF]
Estonian Journal of Earth Sciences, 2023 Anticosti Island, Canada, has long been recognized as an exceptional OrdovicianâSilurian boundary succession with the potential to serve as one of the best records of climatic, oceanographic, and biological events associated with the Late Ordovician ...
Joshua B. Zimmt +10 more
doaj +1 more source
Integration of Darriwilian (Middle Ordovician) δ13Corg chemostratigraphy with graptolite biostratigraphy in the classical Röstånga area in northwestern Scania (southern Sweden) [PDF]
Estonian Journal of Earth Sciences, 2020 The largely covered Middle Ordovician succession in the classic geological Röstånga area in northwestern Scania has not been studied for some 80 years.
Stig M. Bergström +4 more
doaj +1 more source
Ordovician climate changes in the northern subtropics: The δ18O record from the Tunguska Basin, Siberia [PDF]
Estonian Journal of Earth Sciences, 2023 Oxygen isotopes from bioapatite (conodonts) have been used for several decades to reconstruct the Palaeozoic climate history. During the Ordovician, conodont-based δ18Ophos studies have revealed a general cooling trend throughout the system.
Peep Männik +2 more
doaj +1 more source
Searching for the Ordovician–Silurian boundary in Estonia, Latvia and Lithuania [PDF]
Estonian Journal of Earth Sciences, 2023 The present study focuses on determining the position of the lower boundary of the Silurian System in the eastern Baltic region. To achieve this, we conducted a comprehensive analysis of stable isotopic curves, combined with previously published data on ...
Tõnu Meidla, Olle Hints, Leho Ainsaar
doaj +1 more source
Stratigraphy and facies differences of the Middle Darriwilian Isotopic Carbon Excursion (MDICE) in Baltoscandia [PDF]
Estonian Journal of Earth Sciences, 2020 The Middle Darriwilian Isotopic Carbon Excursion (MDICE) is a global isotopic event described in sections from different palaeocontinents. Here we present new stable carbon isotopic data from carbonates of ten sections in different parts of the ...
Leho Ainsaar +5 more
doaj +1 more source
Age of the Ordovician sedimentary succession in Lumparn Bay, Åland Islands, Finland [PDF]
Estonian Journal of Earth Sciences, 2023 Depression of the ancient Lumparn meteorite impact structure in the à land Islands is partly infilled with the lower Palaeozoic sediments, lying presently below sea level. The Cambrian and Ordovician sedimentary cover is distributed in the area of 15 km2,
Leho Ainsaar, Tõnu Meidla
doaj +1 more source