Matches in SemOpenAlex for { <https://semopenalex.org/work/W2002120889> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W2002120889 abstract "ABSTRACT Detailed examination of Neogene strata in cliffs 25-35 m high along the western shore of Chesapeake Bay, Maryland, reveals the complexity of the surviving record of siliciclastic sequences 150 km inland of the structural hinge zone of the Atlantic passive margin. Previous study of the lower to middle Miocene Calvert (Plum Point Member) and Choptank Formations documented a series of third-order sequences 7-10 m thick in which lowstand deposits are entirely lacking, transgressive tracts comprise a mosaic of condensed bioclastic facies, and regressive (highstand) tracts are present but partially truncated by the next sequence boundary; smaller-scale (fourth-order) cyclic units could not be resolved. Together, these sequences constitute t e transgressive and early highstand tracts of a larger (second-order Miocene) composite sequence. The present paper documents stratigraphic relations higher in the Calvert Cliffs succession, including the upper Miocene St. Marys Formation, which represents late highstand marine deposits of the Miocene second-order sequence, and younger Neogene fluvial and tidal-inlet deposits representing incised-valley deposits of the succeeding second-order cycle. The St. Marys Formation consists of a series of tabular units 2-5 m thick, each with an exclusively transgressive array of facies and bounded by stranding surfaces of abrupt shallowing. These units, which are opposite to the flooding-surface-bounded regressive facies arrays of model parasequences, are best characterized as shaved sequences in which only the transgressive tract survives, and are stacked into larger transgressive, highstand, and forced-regression sets. Biostratigraphic analyses by others indicate that this onshore record contains the same number of third-order ( 1 my duration) units as present offshore, and so thinning landward of the hinge zone was accomplished not by omission or erosion of entire cycles of deposition, but instead by omission of some subsidiary elements (e.g., lowstand tracts), by erosional shaving of sequence tops (removing the entire regressive tract in some sequences), by a reduced number of component high-order cycles surviving per larger set, and by qualitative changes in the anatomy or composition of elements (e.g., condensed transgressive tracts; shaved sequences rather than parasequences). All of these differences can be attributed to limited accommodation, ut preservation of an onshore record of each baselevel cycle was probably also favored by the large amplitude and rapidity of eustatic fluctuations during the Miocene." @default.
- W2002120889 created "2016-06-24" @default.
- W2002120889 creator A5038242311 @default.
- W2002120889 date "1997-01-01" @default.
- W2002120889 modified "2023-10-10" @default.
- W2002120889 title "Anatomy of Extremely Thin Marine Sequences Landward of a Passive-Margin Hinge Zone: Neogene Calvert Cliffs Succession, Maryland, U.S.A." @default.
- W2002120889 doi "https://doi.org/10.1306/d4268563-2b26-11d7-8648000102c1865d" @default.
- W2002120889 hasPublicationYear "1997" @default.
- W2002120889 type Work @default.
- W2002120889 sameAs 2002120889 @default.
- W2002120889 citedByCount "21" @default.
- W2002120889 countsByYear W20021208892012 @default.
- W2002120889 countsByYear W20021208892015 @default.
- W2002120889 countsByYear W20021208892016 @default.
- W2002120889 countsByYear W20021208892017 @default.
- W2002120889 countsByYear W20021208892018 @default.
- W2002120889 countsByYear W20021208892021 @default.
- W2002120889 countsByYear W20021208892022 @default.
- W2002120889 crossrefType "journal-article" @default.
- W2002120889 hasAuthorship W2002120889A5038242311 @default.
- W2002120889 hasConcept C109007969 @default.
- W2002120889 hasConcept C114793014 @default.
- W2002120889 hasConcept C119857082 @default.
- W2002120889 hasConcept C127313418 @default.
- W2002120889 hasConcept C127413603 @default.
- W2002120889 hasConcept C150117547 @default.
- W2002120889 hasConcept C151730666 @default.
- W2002120889 hasConcept C18903297 @default.
- W2002120889 hasConcept C27492601 @default.
- W2002120889 hasConcept C2778112365 @default.
- W2002120889 hasConcept C41008148 @default.
- W2002120889 hasConcept C44000306 @default.
- W2002120889 hasConcept C54355233 @default.
- W2002120889 hasConcept C774472 @default.
- W2002120889 hasConcept C78519656 @default.
- W2002120889 hasConcept C86803240 @default.
- W2002120889 hasConceptScore W2002120889C109007969 @default.
- W2002120889 hasConceptScore W2002120889C114793014 @default.
- W2002120889 hasConceptScore W2002120889C119857082 @default.
- W2002120889 hasConceptScore W2002120889C127313418 @default.
- W2002120889 hasConceptScore W2002120889C127413603 @default.
- W2002120889 hasConceptScore W2002120889C150117547 @default.
- W2002120889 hasConceptScore W2002120889C151730666 @default.
- W2002120889 hasConceptScore W2002120889C18903297 @default.
- W2002120889 hasConceptScore W2002120889C27492601 @default.
- W2002120889 hasConceptScore W2002120889C2778112365 @default.
- W2002120889 hasConceptScore W2002120889C41008148 @default.
- W2002120889 hasConceptScore W2002120889C44000306 @default.
- W2002120889 hasConceptScore W2002120889C54355233 @default.
- W2002120889 hasConceptScore W2002120889C774472 @default.
- W2002120889 hasConceptScore W2002120889C78519656 @default.
- W2002120889 hasConceptScore W2002120889C86803240 @default.
- W2002120889 hasLocation W20021208891 @default.
- W2002120889 hasOpenAccess W2002120889 @default.
- W2002120889 hasPrimaryLocation W20021208891 @default.
- W2002120889 hasRelatedWork W132909334 @default.
- W2002120889 hasRelatedWork W1881439788 @default.
- W2002120889 hasRelatedWork W1984974371 @default.
- W2002120889 hasRelatedWork W2165946404 @default.
- W2002120889 hasRelatedWork W2367059172 @default.
- W2002120889 hasRelatedWork W2373084372 @default.
- W2002120889 hasRelatedWork W2375328343 @default.
- W2002120889 hasRelatedWork W3148446407 @default.
- W2002120889 hasRelatedWork W4385728385 @default.
- W2002120889 hasRelatedWork W2757002169 @default.
- W2002120889 hasVolume "Vol. 67" @default.
- W2002120889 isParatext "false" @default.
- W2002120889 isRetracted "false" @default.
- W2002120889 magId "2002120889" @default.
- W2002120889 workType "article" @default.