Results 121 to 130 of about 149 (137)
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The Phytoclast Group as a tracer of palaeoenvironmental changes in the early Toarcian

Geological Society, London, Special Publications, 2021
Abstract In this paper, we present a detailed review of upper Pliensbachian–lower Toarcian kerogen assemblages from the southern areas of the West Tethys shelf (between Morocco and northern Spain) and demonstrate the use of the Phytoclast Group as a tracer of palaeoenvironmental changes in the early Toarcian.
Bruno Rodrigues   +7 more
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Sediment facies, depositional environments, and distribution of phytoclasts in the Recent Mahakam River delta, Kalimantan, Indonesia

PALAIOS, 1992
The Mahakam River delta is a tide- and wave-dominated delta located on the edge of the Kutei basin, eastern Kalimantan, Borneo. It is a coastal deltaic sequence, Neogene to Holocene in age, from which all recoverable hydrocarbons (crude oil and natural gas) are considered to be derived from kerogen III predecessors. However, a complete understanding of
Robert A. Gastaldo, Alain-Yves Huc
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A method of preparing phytoclasts for vitrinite reflectance analysis

Journal of Sedimentary Research, 1979
Abstract The petrology of dispersed organic matter using reflectance microscopy has recently gained popularity with oil exploration source rock programs. In view of the quantity of samples requiring analysis, a simple preparation method is advantageous. One such method utilizing kerogen concentrates mounted on petrographic microslides
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Distribution of the Phytoclast Group

1995
Coarse phytoclast material (> 1 mm) is usually only dominant in high, first and second order, headwater streams (Minshall et al., 1985, p. 1051). Although the input of organic matter to head waters is largely in the form of such coarse (CPOM) material, biological processing and the high retention characteristics of such streams result in the export to ...
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Origin and Nature of the Phytoclast Group

1995
The majority of dispersed fossilizing phytoclasts are derived from the ligno-cellulosic tissues of terrestrial macrophytes. Most probably represent fragments of strongly lignified mechanical support and vascular tissues of the secondary xylem (‘wood’) of arborescent gymnosperms and angiosperms (plus the analogous tissues in tree ferns and extinct ...
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