Results 11 to 20 of about 11,694 (205)

The Upper Miocene of the Rostov Dome (Eastern Paratethys): Implication of the chronostratigraphy and bivalvia-based biostratigraphy [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2005
The Rostov Dome is located in the south of the Russian Platform. In the Late Miocene this area was embraced by the Eastern Paratethys. The implications of a recently developed Neogene chronostratigraphy to the studied area are discussed.
Ruban Dmitry A.
doaj   +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.
van den Bogaard, Paul   +1 more
openaire   +4 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

Pliocene and Pleistocene chronostratigraphy and paleoenvironment of the Central Arctic Ocean, using deep water agglutinated foraminifera [PDF]

open access: yes, 1998
Deep-water agglutinated foraminifera (DWAF) were studied from Cores PS2177-5, PS2200-5, PS2212-3 and PS2185-6; from the R/V POLARSTERN ARK-VIII/3 Cruise in the central Arctic Ocean.
Evans, J.R., Kaminski, M.A.
core   +1 more source

Bolboforma from Leg 105, Labrador Sea and Baffin Bay, and the chronostratigraphy of Bolboforma in the North Atlantic [PDF]

open access: yes, 1989
The genus Bolboforma, first described by Daniels and Spiegler (1974), is a problematic group of calcareous microfossils. Solbaforma is most probably a planktonic cyst (Rogl and Hochuli, 1976) having protozoan or algal affinities (Poag and Karowe, 1986 ...
Kaminski, M., Pallant, A.
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 chronostratigraphy of Late Pleistocene glacial and periglacial aeolian activity in the Tuktoyaktuk Coastlands, NWT, Canada [PDF]

open access: yes, 2006
Aeolian periglacial sand deposits are common in the Tuktoyaktuk Coastlands of Western Arctic Canada. Regionally extensive and thick aeolian sand-sheet deposits have been observed in two major stratigraphic settings: within a sand unit characterized by ...
Ager   +58 more
core   +2 more sources

Siğilmāsa : approche typo-technologique du bâti, processus de formation du site et gestion des matières premières

open access: yesMélanges de la Casa de Velázquez, 2017
This article presents some findings from the French-Moroccan archaeological mission to Siğilmāsa. Given the poor preservation and visibility of the archaeological remains, which makes their interpretation particularly difficult, we first proposed a ...
Romain Mensan   +3 more
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

An integrated biostratigraphy and seismic stratigraphy for the late Neogene continental margin succession in northern Taranaki Basin, New Zealand [PDF]

open access: yes, 2006
Our aim has been to develop an integrated biostratigraphy and seismic stratigraphy for the Pliocene and Pleistocene formations (Ariki, Mangaa, Giant Foresets) in northern Taranaki Basin to better understand the evolution of the modern continental margin ...
Armentrout JM   +17 more
core   +2 more sources

Home - About - Disclaimer - Privacy