Geologic event in which sea level rises relative to the land
Maps of transgression and regression at the Belgian coast
A marine transgression is a geologic event during which sea level rises relative to the land and the shoreline moves toward higher ground, which results in flooding. Transgressions can be caused by the land sinking or by the ocean basins filling with water or decreasing in capacity. Transgressions and regressions may be caused by tectonic events such as orogenies, severe climate change such as ice ages or isostatic adjustments following removal of ice or sediment load.
During the Cretaceous, seafloor spreading created a relatively shallow Atlantic basin at the expense of a deeper Pacific basin. That reduced the world's ocean basin capacity and caused a rise in sea level worldwide. As a result of the sea level rise, the oceans transgressed completely across the central portion of North America and created the Western Interior Seaway from the Gulf of Mexico to the Arctic Ocean.
The opposite of transgression is regression in which the sea level falls relative to the land and exposes former sea bottom. During the Pleistocene Ice Age, so much water was removed from the oceans and stored on land as year-round glaciers that the ocean regressed 120 m, which exposed the Bering land bridge between Alaska and Asia.
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A marinetransgression is a geologic event during which sea level rises relative to the land and the shoreline moves toward higher ground, which results...
seafloor are exposed during a drop in sea level. The opposite event, marinetransgression, occurs when flooding from the sea covers previously-exposed land...
Look up transgression in Wiktionary, the free dictionary. Transgression may refer to: Sin, a violation of God's Ten Commandments or other elements of...
to a marinetransgression. The transgression might have temporarily linked the Pacific and Atlantic oceans, as inferred from the findings of marine invertebrate...
The Tejas sequence was the last major marinetransgression across the North American craton. Following the late Cretaceous regression that ended the Zuñi...
Miaolingian include the appearance of many acritarchs forms, a global marinetransgression, and the disappearance of the polymerid trilobites, Bathynotus or...
of the deposition of sediment Marinetransgression – Geologic event in which sea level rises relative to the land Marine regression – Geologic event in...
regressions may refer to: Marine regression, coastal advance due to falling sea level, the opposite of marinetransgression Regression (medicine), a characteristic...
continental shelves were (at least partly) flooded in response to a major marinetransgression (see below). Beach deposits in Alaska, Bermuda and the Bahamas, as...
East Africa and raised lake levels. Around 800 AD, or 1,150 BP, a marinetransgression occurred in southeastern Africa; in the Lake Lungué basin, this sea...
late Proterozoic through the early Ordovician periods, though the marinetransgression did not begin in earnest until the middle Cambrian. It is one of...
subject to a marinetransgression, which might have temporarily linked the Pacific and Atlantic Oceans, as inferred from the findings of marine invertebrate...
erosion surface cut in older rocks. It is generally associated with a marinetransgression. It is a more general term than overstep, in which the younger beds...
mix of fresh- and saltwater habitats was eventually followed by a marinetransgression that characterizes the geology of the uppermost layers of the formation...
massive sedimentation was underway in different basins, due to a large marinetransgression. By the Eocene, in the Cenozoic, the region returned to terrestrial...
Indian Ridge. During the initial break-up in the Early Jurassic a marinetransgression swept over the Horn of Africa covering Triassic planation surfaces...
The Dunkirk transgressions were tidal bulges or other sea level-related marinetransgressions (risings), often heightened by river floods, affecting the...
during the maximum marinetransgression. During the maximum marinetransgression, shoreline advances landward furthest and the marine environments generally...
Lagoon was formed about six to seven thousand years ago, when the marinetransgression following the Ice Age flooded the upper Adriatic coastal plain. Deposition...
the shells by U-series and amino-acids methods is concluded, this marinetransgression is assigned an approximate age of 200,000 ybp. Outcrops in Bahía...
marked by relatively warm climate and anoxic oceans, along with marinetransgression. Before the start of the Cryogenian, around 750 Ma, the cratons that...
the middle Miocene, some 15 million years ago, when a widespread marinetransgression, known as the Badenian Flooding, improved connections with the global...
glaciation) and the lowering of sea levels (MIS 6, 8 and 10). The Karangat marinetransgression occurred during the Eemian Interglacial (MIS 5e). This may have been...
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