Results 281 to 290 of about 3,560,008 (359)
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Sequence stratigraphy and coal accumulation of Lower Cretaceous coal-bearing series in Erlian Basin, northeastern China

American Association of Petroleum Geologists Bulletin, 2019
The detailed depositional systems and basin evolution of Lower Cretaceous coal-bearing strata in the Erlian Basin of northeastern China were analyzed based on extensive borehole and outcrop data.
Shuai Wang   +5 more
semanticscholar   +1 more source

The Stratigraphy of the Siwalik Series in the Northern Potwar, Punjab, Pakistan

Quarterly Journal of the Geological Society of London, 1951
Summary Detailed mapping of the Jhamat area in the west and of the Soan syncline in the east forms the basis of revision of the stratigraphy of the Siwalik Series in the northern Potwar region. The succession is here affected by facies changes of regional significance :— 1.
W. Gill
semanticscholar   +3 more sources

Advances in the Stratigraphy and Geochemistry of the Organic-Rich Lower Jurassic Series of the Lusitanian Basin (Portugal)

, 2014
Here we present the main results of a study of the high-resolution stratigraphy of the Lower Jurassic organic-rich marine series in the Lusitanian Basin, Portugal. In this basin, the Lower Jurassic consists mainly of an alternating marl–limestone succession (upper Sinemurian–Toarcian), with some intervals enriched in organic matter (upper Sinemurian ...
L. V. Duarte   +11 more
semanticscholar   +3 more sources

Belt Series of the North: Stratigraphy, Sedimentation, Paleontology

open access: closedGeological Society of America Bulletin, 1937
INTRODUCTION The writers9 study of the Belt series began in 1927 and was continued in 1928 and 1932. Field work was virtually completed in 1934, when a grant from the Geological Society of America financed twelve weeks in Glacier and Waterton Lakes national parks and visits to other Belt outcrops.
C. L. FENTON, Mildred Adams Fenton
openalex   +3 more sources

High resolution trilobite stratigraphy of the Lower–Middle Ordovician Öland Series of Baltoscandia

Geological Magazine, 2012
AbstractThe first ever list of the regional Öland Series (Tremadocian to mid Darriwilian) trilobites and agnostids from the whole of Baltoscandia is compiled. The study includes revision of systematics as well as vertical and horizontal distribution. This is necessary because of the uneven state of knowledge, some faunas having being studied recently ...
H. Pärnaste, J. Bergström, Zhou Zhiyi
semanticscholar   +3 more sources

Thematic Set: Scaling in stratigraphic data series: implications for practical stratigraphy

First Break, 2010
Sedimentary layers are planiform, lenticular, generally composite, three-dimensional bodies, distinguished by their lithologies. They are mostly defined and logged in terms of their thickness. This parameter relates non-linearly to time, since it is the outcome of both deposition (at various instantaneous rates) and erosion, which jointly influence the
R. Bailey, D. Smith
semanticscholar   +3 more sources

Stratigraphy of Upper Cretaceous Series in Mississippi and Alabama

AAPG Bulletin, 1938
The Upper Cretaceous sediments of the eastern Gulf region crop out in a crescentic band around the southwestern end of the plunging Appalachian Highlands in a belt 500 miles long and up to 75 miles wide. Their maximum thickness is estimated to be about 2,300 feet.
Lloyd William Stephenson   +1 more
openaire   +2 more sources

Revised stratigraphy of the Upper Cretaceous and Cenozoic series of Lebanon based on nannofossils

Geological Society, London, Special Publications, 2010
Abstract The aim of these investigations was to revise the geological map of Lebanon. Calcareous nannofossils were studied from a predominantly marly Senonian–Maastrichtian and Cenozoic series. About 900 spot samples were collected from exposed strata.
C. Müller   +3 more
semanticscholar   +3 more sources

Sedimentology, stratigraphy, and micropalaeontology of the Upper Triassic reefal series in Eastern Sulawesi (Indonesia)

Palaeogeography, Palaeoclimatology, Palaeoecology, 1997
An Upper Triassic (Upper Norian-Rhaetian) carbonate complex, composed of open marine to reefal deposits, has been investigated for the first time in Eastern Sulawesi. The age is based on the occurrence of benthic foraminifera, and also of the Upper Sevatian to Rhaetian conodont Misikella posthernsteini Kozur and Mock.
MARTINI R.   +6 more
openaire   +4 more sources

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