Results 11 to 20 of about 2,119,061 (274)

Upper Devonian lithostratigraphy of Belgium

open access: yesGeologica Belgica
The lithostratigraphic scale of Belgium, which is the cradle of several global Devonian stages, has been revised after completion of the update of the Geological Map of Wallonia (Carte géologique de Wallonie) at a scale of 1/25,000 and recent stratigraphic and sedimentological research.
Bernard MOTTEQUIN   +4 more
openaire   +2 more sources

A pelagic Upper Devonian sequence in Sarıyer, İstanbul [PDF]

open access: yesTURKISH JOURNAL OF EARTH SCIENCES, 2020
The Palaeozoic sequence in the Istanbul region is made up of a continuous transgressive sedimentary series extending from Ordovician continental clastic rocks to Lower Carboniferous turbidites. The middle part of this sequence consists predominantly of carbonates ranging from shallow marine Upper Silurian limestones to latest Devonian to earliest ...
Aral I. OKAY   +2 more
openaire   +3 more sources

UPPER DEVONIAN CONODONTS FROM LADAKH, HIMALAYA, INDIA [PDF]

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The preserit paper describes Upper Devonian conodont fauna from the black and bluish limestone succession lying immediately above the Muth Quartzite exposed near the village Tanze, Luneak valley, Ladakh.
V. J. GUPTA, S. UPPAL
doaj   +2 more sources

Upper Devonian Brachiopods from Eastern Taurus (Turkey) [PDF]

open access: yesGeologia Croatica, 2006
During a field expedition in Taurus (SE Turkey) in order to studythe Lower Palaeozoic series, a small brachiopod fauna was collectedin the Kozan area in beds of supposed Silurian age.
Remy Gourvennec
doaj   +3 more sources

Geochemical Evidence of First Forestation in the Southernmost Euramerica from Upper Devonian (Famennian) Black Shales. [PDF]

open access: yesSci Rep, 2019
The global dispersal of forests and soils has been proposed as a cause for the Late Devonian mass extinctions of marine organisms, but detailed spatiotemporal records of forests and soils at that time remain lacking.
Lu M   +8 more
europepmc   +2 more sources

On the Upper Old Red Sandstone and Upper Devonian Rocks [PDF]

open access: yesQuarterly Journal of the Geological Society of London
I was engaged for three summer months in 1854, and again for a short tune last year, in examining carefully the lower beds of the Mountain Limestone and the uppermost beds of the Old Red Sandstone, with a view to establish, if possible, the correlation between the Upper Old Red and the corresponding portion of the Devonian series —a relation which has ...
J. Salter
openaire   +3 more sources

Devonian-Carboniferous palynoflora [PDF]

open access: yes, 2020
Palynomorph assemblages and palynofacies analysis have been performed on several core samples from the Devonian–Carboniferous deposits identified in five wells located in the eastern part of the Moesian Platform.
Daniel Tabara (8670849)
core   +3 more sources

Biomarker evidence of algal-microbial community changes linked to redox and salinity variation, Upper Devonian Chattanooga Shale (Tennessee, USA)

open access: yesGSA Bulletin, 2020
Late Devonian marine systems were characterized by major environmental perturbations and associated biotic community changes linked to climate change and widespread oceanic anoxia.
Yi Song   +6 more
semanticscholar   +1 more source

Paleomagnetism of Phanerozoic Geological Complexes in Tuva

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
The authors have investigated palaeomagnetically the Ordovician, Upper Devonian and Lower Carboniferous strata in Tuva. In the rocks, postfolding secondary and prefolding magnetization components were isolated.
Коваленко Д.В.   +3 more
doaj   +1 more source

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