Results 61 to 70 of about 4,201,675 (269)

Distinguishing climate and tectonic signals in the stratigraphy of the Kura Basin, the southeastern foreland of the Greater Caucasus

open access: yesSedimentologika
Assessing the relative contributions of tectonics and climate in orogenic systems and the stratigraphy preserved within their fringing basins has guided research for decades.
Kristoffer Fowler, Adam M. Forte
doaj   +1 more source

The GSSP Method of Chronostratigraphy: A Critical Review

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   +1 more source

Chronological Correlation of the Bronze Age Cultural Traditions in the Southern Trans-Urals (Srubnaya-Alakul and Cherkaskul antiquities)

open access: yesАрхеология евразийских степей, 2023
The article considers the chronology issues of two cultural traditions in the Southern Trans-Ural Bronze Age that poorly provided with radiocarbon dates.
Andrey V. Epimakhov   +4 more
doaj   +1 more source

Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland [PDF]

open access: yesGeological Magazine, 2016
AbstractGlobally, the Series 2 – Series 3 boundary of the Cambrian System coincides with a major carbon isotope excursion, sea-level changes and trilobite extinctions. Here we examine the sedimentology, sequence stratigraphy and carbon isotope record of this interval in the Cambrian strata (Durness Group) of NW Scotland.
WIDDOWSON, MIKE   +14 more
openaire   +4 more sources

The asbian to arnsbergian conodonts and sequence stratigraphy of the Northumberland trough [PDF]

open access: yes, 2001
Yoredale sequences are excellent exemplars of the sequence stratigraphy model; the spacial and temporal variation of these complex shallow marine/fluvio-deltaic/ coastal plain cycles, exhibit all the uiternal facies architecture that would be expected of
Bowden, Alistair
core  

Formal Subdivision of the Holocene Series/Epoch

open access: yes, 2014
This proposal, by a Working Group of Integration of ice-core, marine, and terrestrial records (INTIMATE) and the Subcommission on Quaternary Stratigraphy (SQS) of the International Commission on Stratigraphy (ICS), is for a formal subdivision of the ...
M. Berkelhammer   +23 more
core   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson   +2 more
wiley   +1 more source

The 2012 Studies of the Kashan I Fortified Site

open access: yesПоволжская археология, 2013
The results of a new series of investigations on the Kashan I fortified site (Laishevo district, Republic of Tatarstan), one of the understudied cities of Volga Bulgaria, are made public in the article.
Shigapov Marat B.
doaj   +1 more source

Descriptive, stratigraphic, and morpho‐functional study of the myocardium and myocardial bridges in domestic pig hearts

open access: yesThe Anatomical Record, EarlyView.
Abstract The heart is the central organ of the cardiovascular system. The myocardium is composed of a three‐dimensional network of fibers arranged in clockwise and counterclockwise helices, which are essential for proper cardiac contraction. This study aimed to describe the stratigraphic and morpho‐functional pattern of the porcine myocardium to ...
Mauricio Oliveira da Silva   +3 more
wiley   +1 more source

Nitrogen Diffusion in Calcite

open access: yesGeophysical Monograph Series, Page 97-104., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Daniele Cherniak   +2 more
wiley  

+15 more sources

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