Results 291 to 300 of about 83,571 (346)

Geochemical variability and microbial metabolic functions in oligotrophic sediments exposed to minor seepage. [PDF]

Front Microbiol
Schnabel E, Vuillemin A, Esser S, Griesdorn L, Soares AR, Mørkved PT, Jørgensen SL, Probst AJ, Kallmeyer J, PROSPECTOMICS Consortium.   +9 more
europepmc   +1 more source

The Earth in cyclical transformations: life cycles and sedimentary rocks

Alves, Joana Inês Mendes
openalex   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Mapping Sedimentary Environments of Pennsylvanian Cycles

Geological Society of America Bulletin, 1963
Regional study of the Summum, St. David, and Brereton cyclothems of the Carbondale Formation of Illinois and the Marmaton Group, Des Moines Series, of the Mid-Continent is based on more than 1000 columns with spacing of one per township in Illinois, Indiana, western Kentucky, Missouri, Iowa, eastern Kansas, and northeastern Oklahoma.
HAROLD R. WANLESS, JOHN B. TUBE, DONALD E. GEDNETZ, JOHN L. WEINER   +3 more
openaire   +1 more source

Fossil Fuel Combustion and the Major Sedimentary Cycle

Science, 1971
The combustion of the fossil fuels coal, oil, and lignite potentially can mobilize many elements into the atmosphere at rates, in general, less than but comparable to their rates of flow through natural waters during the weathering cycle. Since the principal sites of fossil fuel combustion are in the mid-latitudes of the Northern Hemisphere, changes in
K K, Bertine, E D, Goldberg
openaire   +2 more sources

Tectonic controls of Phanerozoic sedimentary rock cycling

Deep Sea Research Part B. Oceanographic Literature Review, 1981
The cyclic nature of the Phanerozoic sedimentary rock distribution, carbon-sulphur coupling, and material transfer among sedimentary reservoirs appears to be controlled by tectonic factors. The distribution of preserved sedimentary mass in terms of rock mass remaining U. geologic age shows a minimum c
F. T. Mackenzie, J. D. Pigott
openaire   +2 more sources

Sedimentary cycles and stratigraphy

Stratigraphy, 2007
Sedimentary cycles are repeated sequences in a stratigraphic section. This paper uses "stratigraphic cycles" to describe observed sequences of sediments in sections and "process cycle" to describe processes that generated the cycles. Repetition of cycles is never completely identical and statistical methods of time series analysis are used to describe ...
openaire   +1 more source

Himalayan orogeny and sedimentary cycles

Proceedings / Indian Academy of Sciences, 1961
In the outer Himalaya, during the Cenozoic Era, the quiescent phases, between the orogenic impulses, are marked by three successive periods of sedimentation. The principal sedimentary facies are: (1) ‘Black shale facies’ (Subathu) of the Eocene period followed by (2) ‘flysch facies’ (Lower Murree-Dagshai) during the lower part of Lower Miocene Epoch ...
openaire   +1 more source

The sedimentary cycle of the boron isotopes

Geochimica et Cosmochimica Acta, 1987
Abstract Marine sediments contain two isotopically distinct components: a non-desorbable fraction with δ11B between −4.3 and +2.8 per mil (n = 10) and a desorbable component with δ11B between 13.9 and 15.8 per mil (n = 6). The adsorption coefficient, K, for the uptake of B from seawater by fluvial suspended material (Mississippi) has an ...
A.J Spivack, M.R Palmer, J.M Edmond
openaire   +1 more source

Sedimentary and Evolutionary Cycles

1985
Jurassic molluscan migration and evolution in relation to sea level changes.- Middle Jurassic ammonite evolution in the Andean province and emigration to tethys.- Drastic changes in carboniferous ammonoid rates of evolution.- Ammonite shell form and transgression in the British lower Jurassic.- The role of the environment in the nautilacea.- Response ...
openaire   +1 more source

MODEL OF THE ARAL SEA SEDIMENTARY CYCLES

SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2018
© SGEM2018. The goal of this project was to create a detailed model of the Aral Sea sedimentary cycles. Modern methods of image processing and wavelet analysis were used to reveal the nature of lamination and determine the average and interval sedimentation rates. The results obtained were then compared with those from the radiocarbon dating.
openaire   +3 more sources