نتایج جستجو برای: diagenesis

تعداد نتایج: 1443  

Journal: :Basin Research 2021

This paper evaluates previously proposed diagnostic criteria that can be used to determine whether or not there is active migration of the opal-A opal-CT transition zone (TZA/CT). The are based on interpretation 2D and 3D seismic surveys therefore geometrical. They involve an assessment relationship TZA/CT with polygonal fault systems, differential compaction structures tectonic folds. most rob...

Journal: :Marine pollution bulletin 2006
Mika Yamada Koshi Yamamoto Yasuhiro Ushihara Hiroshi Kawai

bution and early-diagenesis in salt marsh sediments from the Medway Estuary, Kent, UK. Estuarine Coastal and Shelf Science 57 (1–2), 43–54. Spencer, K.L., Dewhurst, R.E., Penna, P., 2005. Potential impacts of water injection dredging on water quality and ecotoxicity in Limehouse Basin. Chemosphere. Sullivan, N., 2000. The use of agitation dredging, water injection dredging and sidecasting: resu...

Journal: :Science 2004
K E Herkenhoff S W Squyres R Arvidson D S Bass J F Bell P Bertelsen B L Ehlmann W Farrand L Gaddis R Greeley J Grotzinger A G Hayes S F Hviid J R Johnson B Jolliff K M Kinch A H Knoll M B Madsen J N Maki S M McLennan H Y McSween D W Ming J W Rice L Richter M Sims P H Smith L A Soderblom N Spanovich R Sullivan S Thompson T Wdowiak C Weitz P Whelley

The Microscopic Imager on the Opportunity rover analyzed textures of soils and rocks at Meridiani Planum at a scale of 31 micrometers per pixel. The uppermost millimeter of some soils is weakly cemented, whereas other soils show little evidence of cohesion. Rock outcrops are laminated on a millimeter scale; image mosaics of cross-stratification suggest that some sediments were deposited by flow...

Journal: :Science 1977
J Gulati L G Palmer

Zone (4); Santa Barbara Basin, California (5); Lake Biwa, Japan (6); Lake Washington, Washington (7); and the Amazon River (8). It is thought that perylene in these sediments results from the diagenesis of terrestrial pigments which have been rapidly deposited into a reducing sediment. This idea also seems to account for the presence of perylene in this sewage lagoon. We feel it is important no...

Journal: :Archaeological and Anthropological Sciences 2019

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