Results 71 to 80 of about 27,665 (229)
The Middle-upper Devonian clastic wedge of the Franklinian geosyncline
, 1976 Bibliography: p. 259-274.
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, 1994 Petrographic analyses of Swan Hills carbonates (Middle-Upper Devonian) from the deeply buried subsurface (2500-4000 m) of west-central Alberta indicate that these carbonates underwent diagenesis in submarine and subsurface environments, without significant modifications from shallow, meteoric waters.
H Qing, J Wendte
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Geochemistry, Geophysics, Geosystems, 2018 The thick Silurian siliciclastic sedimentary rocks in the Qin‐Fang region contrasting with their absence in surrounding regions have long been an enigma for the early Paleozoic geology of South China. Here we employ detrital zircon U‐Pb geochronology and
Xinchang Zhang +5 more
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Geologic framework, tectonic evolution, and displacement history of the Alexander Terrane [PDF]
, 1987 The Alexander terrane consists of upper Proterozoic(?)-Cambrian through Middle(?) Jurassic rocks that underlie much of southeastern (SE) Alaska and parts of eastern Alaska, western British Columbia, and southwestern Yukon Territory. A variety of geologic,
Schultz, R. +2 more
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Lower Mississippian Lithostratigraphy, Northern Arkansas [PDF]
, 1976 Lower Mississippian lithostratigraphic units in northern Arkansas are (ascending order) the Bachelor, St. Joe, and Boone Formations. These formations disconformably overlie Middle Ordovician to Upper Devonian strata and are overlain disconformably by ...
Manger, Walter L., Shanks, Jack L.
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Middle Devonian and Frasnian bryozoan fauna from the Holy Cross Mountains, Poland
Acta Palaeontologica PolonicaThe present paper describes a bryozoan fauna from the Devonian of Holy Cross Mountains (Poland) which includes nine species. Six species were described from the Dobruchna Member of the Skały Formation (Eifelian) of Skały section: Cyclotrypa sp ...
Andrej Ernst +2 more
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Proceedings of the Mongolian Academy of Sciences, 2018 The study area is located in the central part of Tsetserleg terrane in the southwestern margin of the Khangai-Khentey orogenic system. The paper presents new data on geochemistry and geochronology of sedimentary rocks from the Shar Khutul area, where the
Erdenechimeg D +9 more
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Gradational development of slaty cleavage to schistosity -an example from the Iberian Pyrite Belt, Spain- [PDF]
, 1994 The Iberian Pyrite Belt is an Upper Paleozoic succession which has been divided into the Phyllite-Quartzite Group, the Volcanic-Sliceous Complex and the Culm Group in ascending order from base to the top. The contacts among them are conformable.
Suzuki, shigeyuki
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A NEW SPECIES OF THE DEVONIAN ACTINOPTERYGIAN FISH MOYTHOMASIA FROM BELARUS
Rivista Italiana di Paleontologia e StratigrafiaA new species of early actinopterygian fishes, Moythomasia lebedevi sp. nov., is described based on numerous isolated scales occurring in Middle Devonian (Givetian, Polotskian Regional Stage) marine deposits (Goryn, Stolin and Moroch Beds) of Belarus ...
DMITRY PLAX +2 more
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A geological fence diagram for England and Wales [PDF]
, 2012 This report contains a brief description of the data and methodology used to compile the National Geological Fence Diagram (NGFD). The NGFD comprises a network of intersecting geological cross-sections covering England and Wales, to a minimum depth of
Ambrose, K. +7 more
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