Results 11 to 20 of about 2,787 (218)

Is there a role for sequence stratigraphy in chronostratigraphy?

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   +4 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 G. Lucas
doaj   +2 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

Elemental Diffusion Chronostratigraphy

open access: yes, 2021
Time-related information of pre-eruptive magmatic processes is locked in the chemical profile of compositionally zoned minerals and can be retrieved by means of elemental diffusion chronometry. However, only the timescale of the outermost rim is commonly
Mangler, Martin F.   +3 more
core   +1 more source

Five Middle Palaeolithic occupations from the Early Weichselian glacial: the Soindres deposit (Yvelines). Stratigraphy and lithic industries.

open access: yesGallia Préhistoire, 2021
. The excavation of the Middle Palaeolithic site of Soindres has made possible to observe an exceptionally dilated pedosedimentary sequence, related to the last glaciation.
Jean-Luc Locht, Christine Chaussé
doaj   +1 more source

The Lapland greenstone belt: Stratigraphic and depositional features in northern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1987
The Lapland greenstone belt formed in a continental environment, as a result of rifting of the 3.1—3.0 Ga Saamian craton. The basin subsided to a depth of five kilometres between 3.0—2.5 Ga and contains a sequence which is subdivided into Lower, Middle ...
M. Saverikko
doaj   +1 more source

Tertiary Sequence Stratigraphy of Bird Head Area, Eastern Indonesia

open access: yesIndonesian Journal on Geoscience, 2019
A long depositional period of Papua limestone called Kais Formation, which is overlain by clastic sediments of Steenkool Formation, reflects an interesting stratigraphic architecture in the West Papua region.
Syaiful Alam, Djadjang Jedi Setiadi
doaj   +1 more source

The Anthropocene: Comparing Its Meaning in Geology (Chronostratigraphy) with Conceptual Approaches Arising in Other Disciplines

open access: yesEarth's Future, 2021
The term Anthropocene initially emerged from the Earth System science community in the early 2000s, denoting a concept that the Holocene Epoch has terminated as a consequence of human activities.
Jan Zalasiewicz   +26 more
doaj   +1 more source

Ratification of Neogene subseries as formal units in international chronostratigraphy [PDF]

open access: yes, 2022
The International Union of Geological Sciences Executive Committee (IUGS EC) voted on 13 October 2021 to ratify a proposal for the Neogene subseries/subepochs to have formal status. They are now incorporated into a sixtiered chronostratigraphic hierarchy
Triantaphyllou, Maria   +40 more
core   +3 more sources

A Continuous Seismostratigraphic Framework for the Western Svalbard-Barents Sea Margin Over the Last 2.7 Ma: Implications for the Late Cenozoic Glacial History of the Svalbard-Barents Sea Ice Sheet

open access: yesFrontiers in Earth Science, 2021
Here we present a high-resolution, continuous seismostratigraphic framework that for the first time, connects the over 1,000 km long western Svalbard-Barents Sea margin and covers the last ∼2.7 million years (Ma).
Nikolitsa Alexandropoulou   +9 more
doaj   +1 more source

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