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
AGE OF THE KINTEREP FORMATION OF THE NORTHWESTERN SALAIR: CHEMOSTRATIGRAPHY AND U-Pb ZIRCON DATING
Геодинамика и тектонофизика, 2022 A comprehensive study of the stratotype section of the Kinterep formation of the North-Western Salair was carried out, including geochemical and isotope (Sr, C, O) studies of carbonate rocks, and U-Pb dating (LA-ICP-MS) of igneous zircon crystals from ...
N. I. Vetrova +3 more
doaj +1 more source
Geochemical and palaeontological evidence for the definition of the Silurian/Devonian boundary in the Changwantang Section, Guangxi Province, China [PDF]
Estonian Journal of Earth Sciences, 2015 Southern Guangxi Province is one of the important areas for the study of the Silurian/Devonian boundary (SDB) in South China. Despite attempts to define the exact level of the SDB in the Yulin (Guangxi Province) area using biostratigraphy, no consensus ...
Wen-jin Zhao +3 more
doaj +1 more source
Геодинамика и тектонофизика, 2022 The "AIRES" Shared Research Facilities (SRF) is a high-tech laboratory complex based on the Institute of Precambrian Geology and Geochronology RAS (IPGG RAS, St. Petersburg).
A. B. Kuznetsov +2 more
doaj +1 more source
Geology, lithogeochemistry and paleotectonic setting of the host sequence to the Kangasjärvi Zn-Cu deposit, central Finland: Implications for volcanogenic massive sulphide exploration in the Vihanti-Pyhäsalmi district [PDF]
Bulletin of the Geological Society of Finland, 2004 The Kangasjärvi Zn-Cu deposit is a highly deformed and metamorphosed Paleoproterozoic volcanogenic massive sulphide (VMS) deposit located in the Vihanti-Pyhäsalmi base metal mining district of central Finland.
M.D. Roberts, N.H.S. Oliver, R. Lahtinen
doaj +1 more source
Přídolí carbon isotope trend and upper Silurian to lowermost Devonian chemostratigraphy based on sections in Podolia (Ukraine) and the East Baltic area [PDF]
Estonian Journal of Earth Sciences, 2012 Insufficient knowledge of carbon isotope cycling in the latest Silurian initiated the study of two regions at the western and southwestern margins of Baltica in order to obtain a more complete picture about the carbon isotope trend through the Přídolí ...
Dimitri Kaljo +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
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
Frontiers in Earth Science, 2022 Increasing application of high precision uranium-lead (U-Pb) and rhenium-osmium (Re-Os) geochronology to the ancient geological record has resulted in massive improvement in age control and calibration of key Proterozoic stratigraphic successions and ...
Galen P. Halverson +3 more
doaj +1 more source