Results 11 to 20 of about 3,717 (209)

Quaternary chronostratigraphy - a review [PDF]

open access: yesBulletin of the Geological Society of Finland, 1992
Quaternary development is characterized by strong climatic fluctuations associated with repeated glacier expansions. Consequently the Quaternary chronostratigraphy is largely based on the dating of climatic fluctuations which have led to large-scale ...
M. Eronen
doaj   +3 more sources

The GSSP Method of Chronostratigraphy: A Critical Review [PDF]

open access: yesFrontiers in Earth Science, 2018
The use of boundary stratotypes to define chronostratigraphic units began in the 1960s, and, in the 1980s, these were called Global Stratotype Sections and Points (GSSPs). Approximately two-thirds of the GSSPs of the bases of the Phanerozoic stage (71 of
Spencer Lucas
exaly   +4 more sources

Chronostratigraphy and geochronology: A proposed realignment [PDF]

open access: yesGSA Today, 2013
We propose a realignment of the terms geochronology and chronostratigraphy that brings them broadly into line with current use, while simultaneously resolving the debate over whether the Geological Time Scale should have a “single” or “dual” hierarchy of units: Both parallel sets of units are retained, although there remains the option to adopt ...
Zalasiewicz, J.   +6 more
openaire   +7 more sources

Is there a role for sequence stratigraphy in chronostratigraphy? [PDF]

open access: yesStratigraphy, 2007
Sequence stratigraphy revolutionized the field of stratigraphy in the late 1970s and 1980s by providing an interpretive depositional framework for integrating diverse stratigraphic data at the scale of sedimentary basins. However, a lack of consensus on criteria for recognizing, mapping and hence dating sequence boundaries, interpretations of uneven ...
Christie-Blick, Nicholas   +2 more
openaire   +3 more sources

Chronostratigraphy of Gran Canaria [PDF]

open access: yes, 1998
A chronostratigraphy of Miocene/Pliocene volcanism on Gran Canaria (Canary Islands) has been established by single- crystal 40Ar/39Ar laser dating of feldspar crystals from 58 samples of welded ignimbrites, lava flows, fallout tephra layers, and intrusive rocks.
P. van den Bogaard, H.-U. Schmincke
core   +4 more sources

Editorial: Multi-Disciplinary Applications in Magnetic Chronostratigraphy

open access: yesFrontiers in Earth Science, 2021
Linda Hinnov   +2 more
exaly   +3 more sources

Conodonts in Ordovician Chronostratigraphy [PDF]

open access: yes, 2015
The great importance of conodonts in Ordovician chronostratigraphy is shown by the fact that conodonts are used for the definition of two of the seven global stages, and seven of the 18 stage slices, now recognized within this system.
Bergström, Stig M., FERRETTI, Annalisa
openaire   +2 more sources

Permian Large Igneous Provinces and Their Paleoenvironmental Effects

open access: yesGeophysical Monograph Series, Page 417-434., 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.
Jun Chen, Yi‐Gang Xu
wiley  

+2 more sources

Running across the Silurian/Devonian Boundary along Northern Gondwana: A Conodont Perspective

open access: yesGeosciences, 2022
The Global Stratotype Section and Point (GSSP) of the Silurian/Devonian boundary, Lower Devonian Series and Lochkovian Stage was formally placed in 1977 at Klonk, in the Czech Republic, at the first appearance of the graptolite Uncinatograptus uniformis ...
Annalisa Ferretti   +3 more
doaj   +1 more source

Shelly fossils from the lower Cambrian White Point Conglomerate, Kangaroo Island, South Australia [PDF]

open access: yesActa Palaeontologica Polonica, 2019
The lower Cambrian (Series 2) White Point Conglomerate (WPC) on Kangaroo Island, South Australia contains exotic clasts representing a diverse array of lithologies, including metamorphics, chert, sandstone, and abundant carbonates, notably archaeocyath ...
Marissa J. Betts   +5 more
doaj   +1 more source

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