Results 31 to 40 of about 253,896 (432)

PALEONTOLOGY AND EVOLUTIONARY LINEAGES OF THE DIAGNOSTIC BENTHIC FORAMINIFERAL GENUS ORTHOKARSTENIA [PDF]

open access: yesGeological Behavior, 2022
This work is focused on the members of the Late Cretaceous-Early Paleogene (K-Pg) diagnostic benthic foraminiferal genus Orthokarstenia which is regionally important in paleontology and stratigraphic correlations.
Haidar Salim Anan
doaj   +1 more source

Employing magma ocean crystallization models to constrain structure and composition of the lunar interior [PDF]

open access: yes, 2021
The process of lunar magma ocean solidification provides constraints on the properties of distinct chemical reservoirs in the lunar mantle that formed during the early evolution of the Moon. We use a combination of phase equilibria models consistent with experimental results on lunar magma ocean crystallization to study the effect of bulk silicate Moon
arxiv   +1 more source

The El Masnou Infralittoral sedimentary environment (Barcelona province, NW Mediterranean Sea): morphology and Holocene seismic stratigraphy [PDF]

open access: yes, 2010
A detailed analysis of the morphology and the Holocene seismic and sequence stratigraphy and architecture of the infralittoral sedimentary environment of the El Masnou coast (Catalonia, NW Mediterranean Sea) was carried out using multibeam bathymetry and
Alonso, Belén (Alonso Martínez)   +6 more
core   +4 more sources

Microbial activity and studies on excavated megalithic micaceous potsherds from Peninsular India [PDF]

open access: yesCerâmica, 2021
The abundantly available mica flakes were added in raw materials to manufacture pottery in Central Peninsular India during the early Iron Age (700-300 BCE) for storage and glittering.
M. R. Singh, K. Ganaraj, V. M. Sharma
doaj   +1 more source

Cenozoic evolution of the eastern Black Sea: a test of depth-dependent stretching models [PDF]

open access: yes, 2008
Subsidence analysis of the eastern Black Sea basin suggests that the stratigraphy of this deep, extensional basin can be explained by a predominantly pure-shear stretching history.
Edwards, Glyn R.H.   +6 more
core   +1 more source

Sedimentary Environment, Diagenesis, Sequence Stratigraphy, and Reservoir Quality of the Ilam Formation in Dezful Embayment and Abadan Plain in South-West Iran [PDF]

open access: yesarXiv, 2022
The Ilam Formation Cenomanian to Santonian in age is considered one of the main rock reservoirs of the Bangestan Group in the southwest of Iran. This formation mostly consists of carbonate rocks. To examine the sedimentary environment, diagenesis, sequence stratigraphy, and reservoir quality of Ilam Formation in Dezful embayment and Abadan Plain, four ...
arxiv  

The stratigraphy, correlation, provenance and palaeogeography of the Skiddaw Group (Ordovician) in the English Lake District [PDF]

open access: yes, 1995
A new lithostratigraphy is presented for the Skiddaw Group (lower Ordovician) of the English Lake District. Two stratigraphical belts are described. Five formations are defined in the Northern Fells Belt, ranging in age from Tremadoc to early Llanvirn.
Cooper, A.H.   +5 more
core   +1 more source

Digitizing the Sedimentary Record: Efficient Data Structures for Dynamic Stratigraphy

open access: yesJournal of Algorithms & Computational Technology, 2007
As the surface of the Earth evolves over geologic time sediment is transported from high mountains to low lying sedimentary basins, accumulating stratigraphy which stores a sedimentary record of past environments.
Matthew A. Wolinsky
doaj   +1 more source

Structure of the Alpujarrides on the southern and eastern border of the Sierra de Lújar

open access: yesEstudios Geologicos, 1990
El Complejo Alpujárride situado al Sur de Sierra Nevada y comprendido entre Motril y Adra, está formado por cinco mantos que son, en orden ascendente: Lújar, Cástaras, Alcázar, Murtas y Adra.
J. Cuevas   +3 more
doaj   +1 more source

Stratigraphy and eruption history of maars in the Clear Lake Volcanic Field, California

open access: yesFrontiers in Earth Science, 2022
The Clear Lake Volcanic Field (CLVF) is the northernmost and youngest field in a chain of volcanic fields in the California Coast Range mountains. Effusive and explosive volcanic activity in the field has spanned at least 2.1 million years, with the ...
Jessica L. Ball
doaj   +1 more source

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