marine transgression


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marine transgression

[mə′rēn tranz′gresh·ən]
(geology)
References in periodicals archive ?
A major marine transgression occurred during early Ediacaran with the deposition of Doushantuo Formation mudstone and shale and Dengying Formation dolostone and cherty dolostone.
The first marine transgression occurred in the mid-Jurassic from the south and south-east.
This marine transgression created Pleistocene cliff scree deposits around the palaeo-seifs near the northernmost regions of the barrier islands to the west of Abu Dhabi Island such as Al Dabb'iya (Kirkham, 1998a; Evans and Kirkham, 2005) and Al Aryam (Evans and Kirkham, 2009a).
The aim of this paper is to examine the palaeoenvironmental changes occurred during the marine transgression of the Cenomanian in the North of Iberia.
All deposits were isoclinal, indicating marine transgression in the studied area (Permian).
The subject of the study is the Quaternary sediments which lie on the rocks of the Moravia-Silesian Palaeozoic predominantly represented by Carboniferous rocks and on earlier Neogeneous sediments of the Carpathian Fore deep deposited in the course of marine transgression from Eggenburg to Badenian.
Phase 1 (7180-4960 caIBP) is associated with recurring/ permanent occupation involving marine-based subsistence during the poorly documented period of marine transgression. Phase 2 (230BP-present) is a period of increased site use including an escalation of marine subsistence activities.
Observations of buried dune ridges and current dune activity indicate that the former stage of progradation has been overcome by marine transgression on the seaward side and the shore is now retrogressive.
The Lower Jurassic began with a major marine transgression during which the Hamlah and Izhara were deposited.
They formed about 125,000 years ago (125Ka) and became cemented before being partly drowned by the rising sea of a Pleistocene marine transgression that deposited marine sediment on their crests and around their flanks.
is marked in many zones by an angular discordance that indicates the influence of the tectonics movements before the marine transgression (Bozorgnia, 1965).
(1996), most of the texturally submature to mature sediments of the Prato Solaro Member were deposited in a fan-delta setting, where marine transgression would be proved by wave rippled mature subarkoses and the presence (Merla, 1933) of the bivalves Neoschizodus laevigatus (Goldfuss) and Unionites canalensis (Catullo) which, according again to Sciunnach et al.

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