http://debianws.lexgopc.com/wiki143/index.php?action=history&feed=atom&title=ProgradationProgradation - Revision history2026-06-02T03:42:05ZRevision history for this page on the wikiMediaWiki 1.43.1http://debianws.lexgopc.com/wiki143/index.php?title=Progradation&diff=7709284&oldid=previmported>Unrulyevil5 at 16:40, 1 July 20252025-07-01T16:40:18Z<p></p>
<p><b>New page</b></p><div>{{short description|Growth of a river delta into the sea over time}}<br />
In [[sedimentary geology]] and [[geomorphology]], the term '''progradation''' refers to the growth of a [[river delta]] further out into the sea over time. This occurs when the [[volume]] of incoming [[sediment]] is greater than the volume of the delta that is lost through [[subsidence]], [[sea-level rise]], or [[erosion]].<ref>{{cite book |editor1-last=Jackson |editor1-first=Julia A. |title=Glossary of geology. |date=1997 |publisher=American Geological Institute |location=Alexandria, Virginia |isbn=0922152349 |edition=Fourth |chapter=progradation}}</ref><br />
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Progradation can be caused by:<br />
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* Periods of [[sea level|sea-level]] fall which result in [[marine regression]]. This can occur during major [[glaciation|continental glaciation]]s within [[ice age]]s,<ref>{{cite journal |last1=Schofield |first1=J. C. |title=Sea-level fluctuations cause periodic, post-glacial progradation, South Kaipara Barrier, North Island, New Zealand |journal=New Zealand Journal of Geology and Geophysics |date=March 1975 |volume=18 |issue=2 |pages=295–316 |doi=10.1080/00288306.1975.10418201|bibcode=1975NZJGG..18..295S }}</ref> be caused by changes in the rates of [[seafloor spreading]] that affects the volume of the ocean basins,<ref>{{cite book |last1=Embry |first1=Ashton F. |title=Sea-level changes : an integrated approach |date=1988 |publisher=Society of Economic Paleontologists and Mineralogists |location=Tulsa, Okla. |isbn=0918985749 |url=https://archives.datapages.com/data/sepm_sp/SP42/Triassic_Sea-Level_Changes.htm |access-date=23 May 2022 |chapter=Triassic sea-level changes: Evidence from the Canadian Arctic Archipelago}}</ref> or tectonic effects on the regional mantle density structure which can change the [[geoid]] elevation.<ref>{{cite journal |last1=Stoker |first1=Martyn S. |last2=Holford |first2=Simon P. |last3=Hillis |first3=Richard R. |last4=Green |first4=Paul F. |last5=Duddy |first5=Ian R. |title=Cenozoic post-rift sedimentation off northwest Britain: Recording the detritus of episodic uplift on a passive continental margin |journal=Geology |date=July 2010 |volume=38 |issue=7 |pages=595–598 |doi=10.1130/G30881.1|bibcode=2010Geo....38..595S |url=http://nora.nerc.ac.uk/id/eprint/9879/1/Stoker_et_al_2010_Geology.pdf }}</ref><br />
* Extremely high sediment input, such as by the Huang He ([[Yellow River]]) in [[China]], which drains the [[Loess plateau]],<ref>{{cite journal |last1=Saito |first1=Yoshiki |last2=Wei |first2=Helong |last3=Zhou |first3=Yongqing |last4=Nishimura |first4=Akira |last5=Sato |first5=Yoshio |last6=Yokota |first6=Setsuya |title=Delta progradation and chenier formation in the Huanghe (Yellow River) delta, China |journal=Journal of Asian Earth Sciences |date=August 2000 |volume=18 |issue=4 |pages=489–497 |doi=10.1016/S1367-9120(99)00080-2|bibcode=2000JAESc..18..489S }}</ref> or from high sediment loads in [[proglacial river]]s.<ref>{{cite journal |last1=Nemec |first1=W. |last2=LφNNE |first2=Ida |last3=Blikra |first3=Lars H. |title=The Kregnes moraine in Gauldalen, west-central Norway: anatomy of a Younger Dryas proglacial delta in a palaeofjord basin* |journal=Boreas |date=16 January 2008 |volume=28 |issue=4 |pages=454–476 |doi=10.1111/j.1502-3885.1999.tb00234.x|s2cid=128823562 }}</ref><br />
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==See also==<br />
*{{annotated link|Retrogradation}}<br />
*{{annotated link|Aggradation}}<br />
*{{annotated link|Marine transgression}}<br />
*{{annotated link|Sedimentology}}<br />
*{{annotated link|Stratigraphy}}<br />
*{{annotated link|Sequence stratigraphy}}<br />
*{{annotated link|Sediment transport}}<br />
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==References==<br />
{{reflist}}<br />
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{{Rivers, streams and springs}}<br />
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[[Category:Sedimentology]]<br />
[[Category:Stratigraphy]]<br />
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{{Sedimentology-stub}}<br />
{{Stratigraphy-stub}}</div>imported>Unrulyevil5