Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Carbonate_hardgrounds> ?p ?o }
Showing triples 1 to 85 of
85
with 100 triples per page.
- Carbonate_hardgrounds abstract "Carbonate hardgrounds are surfaces of synsedimentarily cemented carbonate layers that have been exposed on the seafloor (Wilson and Palmer, 1992). A hardground is essentially, then, a lithified seafloor. Ancient hardgrounds are found in limestone sequences and distinguished from later-lithified sediments by evidence of exposure to normal marine waters. This evidence can consist of encrusting marine organisms (especially bryozoans, oysters, barnacles, cornulitids, hederelloids, microconchids and crinoids), borings of organisms produced through bioerosion, early marine calcite cements, or extensive surfaces mineralized by iron oxides or calcium phosphates (Palmer, 1982; Bodenbender et al., 1989; Vinn and Wilson, 2010; Vinn and Toom, 2015). Modern hardgrounds are usually detected by sounding in shallow water or through remote sensing techniques like side-scan radar.Carbonate hardgrounds often host a unique fauna and flora adapted to the hard surface. Organisms usually cement themselves to the substrate and live as sessile filter-feeders (Brett and Liddell, 1982). Some bore into the cemented carbonate to make protective domiciles (borings) for filter-feeding. Sometimes hardgrounds are undermined by currents which remove the soft sediment below them, producing shallow cavities and caves which host a cryptic fauna (Palmer and Fürsich, 1974). The evolution of hardground faunas can be traced through the Phanerozoic, from the Cambrian Period to today (Taylor and Wilson, 2003).Carbonate hardgrounds were most commonly formed during calcite sea intervals in Earth history, which were times of rapid precipitation of low-magnesium calcite and the dissolution of skeletal aragonite (Palmer and Wilson, 2004). The Ordovician-Silurian and the Jurassic-Cretaceous Systems have the most hardgrounds (sometimes hundreds in a single section) and the Permian-Triassic Systems have the least (usually none). This cyclicity in hardground formation is reflected in the evolution of hardground-dwelling communities. There are distinct differences between the Paleozoic and Mesozoic hardground communities: the former are dominated by thick calcitic bryozoans and echinoderms, the latter by oysters and deep bivalve (Gastrochaenolites) and sponge (Entobia) borings (Taylor and Wilson, 2003).Stratigraphers and sedimentologists often use hardgrounds as marker horizons and as indicators of sedimentary hiatuses and flooding events (Fürsich et al., 1981, 1992; Pope and Read, 1997). Hardgrounds and their faunas can also represent very specific depositional environments such as tidal channels (Wilson et al., 2005) and shallow marine carbonate ramps (Palmer and Palmer, 1977; Malpas et al., 2004)".
- Carbonate_hardgrounds thumbnail Hardground_oblique_Ordovician_071514c.jpg?width=300.
- Carbonate_hardgrounds wikiPageExternalLink index.html.
- Carbonate_hardgrounds wikiPageExternalLink index.html.
- Carbonate_hardgrounds wikiPageExternalLink journal.pone.0134279.
- Carbonate_hardgrounds wikiPageExternalLink index.html.
- Carbonate_hardgrounds wikiPageExternalLink earth-2015-3-249-253.pdf.
- Carbonate_hardgrounds wikiPageExternalLink PalmerWilson05.pdf.
- Carbonate_hardgrounds wikiPageExternalLink Taylor%26Wilson2003.pdf.
- Carbonate_hardgrounds wikiPageExternalLink ZoharRockyShore.pdf.
- Carbonate_hardgrounds wikiPageID "14909902".
- Carbonate_hardgrounds wikiPageLength "11006".
- Carbonate_hardgrounds wikiPageOutDegree "49".
- Carbonate_hardgrounds wikiPageRevisionID "682372571".
- Carbonate_hardgrounds wikiPageWikiLink Aragonite.
- Carbonate_hardgrounds wikiPageWikiLink Barnacle.
- Carbonate_hardgrounds wikiPageWikiLink Barnacles.
- Carbonate_hardgrounds wikiPageWikiLink Bioerosion.
- Carbonate_hardgrounds wikiPageWikiLink Bivalve.
- Carbonate_hardgrounds wikiPageWikiLink Bivalvia.
- Carbonate_hardgrounds wikiPageWikiLink Bryozoa.
- Carbonate_hardgrounds wikiPageWikiLink Bryozoan.
- Carbonate_hardgrounds wikiPageWikiLink Bryozoans.
- Carbonate_hardgrounds wikiPageWikiLink Calcite.
- Carbonate_hardgrounds wikiPageWikiLink Calcite_sea.
- Carbonate_hardgrounds wikiPageWikiLink Cambrian.
- Carbonate_hardgrounds wikiPageWikiLink Carmel_Formation.
- Carbonate_hardgrounds wikiPageWikiLink Category:Historical_geology.
- Carbonate_hardgrounds wikiPageWikiLink Category:Limestone.
- Carbonate_hardgrounds wikiPageWikiLink Category:Sedimentology.
- Carbonate_hardgrounds wikiPageWikiLink Cornulitida.
- Carbonate_hardgrounds wikiPageWikiLink Cretaceous.
- Carbonate_hardgrounds wikiPageWikiLink Crinoid.
- Carbonate_hardgrounds wikiPageWikiLink Crinoids.
- Carbonate_hardgrounds wikiPageWikiLink Depositional_environment.
- Carbonate_hardgrounds wikiPageWikiLink Echinoderm.
- Carbonate_hardgrounds wikiPageWikiLink Echinoderms.
- Carbonate_hardgrounds wikiPageWikiLink Entobia.
- Carbonate_hardgrounds wikiPageWikiLink Gastrochaenolites.
- Carbonate_hardgrounds wikiPageWikiLink Hederellid.
- Carbonate_hardgrounds wikiPageWikiLink Hederellids.
- Carbonate_hardgrounds wikiPageWikiLink Indiana.
- Carbonate_hardgrounds wikiPageWikiLink Jurassic.
- Carbonate_hardgrounds wikiPageWikiLink Kentucky.
- Carbonate_hardgrounds wikiPageWikiLink Limestone.
- Carbonate_hardgrounds wikiPageWikiLink Marker_horizon.
- Carbonate_hardgrounds wikiPageWikiLink Microconchida.
- Carbonate_hardgrounds wikiPageWikiLink Middle_Ordovician.
- Carbonate_hardgrounds wikiPageWikiLink Ordovician.
- Carbonate_hardgrounds wikiPageWikiLink Oyster.
- Carbonate_hardgrounds wikiPageWikiLink Oysters.
- Carbonate_hardgrounds wikiPageWikiLink Permian.
- Carbonate_hardgrounds wikiPageWikiLink Petroxestes.
- Carbonate_hardgrounds wikiPageWikiLink Seabed.
- Carbonate_hardgrounds wikiPageWikiLink Seafloor.
- Carbonate_hardgrounds wikiPageWikiLink Sedimentary_depositional_environment.
- Carbonate_hardgrounds wikiPageWikiLink Silurian.
- Carbonate_hardgrounds wikiPageWikiLink Triassic.
- Carbonate_hardgrounds wikiPageWikiLink Trypanites.
- Carbonate_hardgrounds wikiPageWikiLink Utah.
- Carbonate_hardgrounds wikiPageWikiLink File:CarmelHdgd.jpg.
- Carbonate_hardgrounds wikiPageWikiLink File:Cretaceous_hardground.jpg.
- Carbonate_hardgrounds wikiPageWikiLink File:HardgroundPapers.jpg.
- Carbonate_hardgrounds wikiPageWikiLink File:Hardground_oblique_Ordovician_071514c.jpg.
- Carbonate_hardgrounds wikiPageWikiLinkText "Carbonate hardgrounds".
- Carbonate_hardgrounds wikiPageWikiLinkText "carbonate hardground".
- Carbonate_hardgrounds wikiPageWikiLinkText "carbonate hardgrounds".
- Carbonate_hardgrounds wikiPageWikiLinkText "hardgrounds".
- Carbonate_hardgrounds hasPhotoCollection Carbonate_hardgrounds.
- Carbonate_hardgrounds wikiPageUsesTemplate Template:Cite_journal.
- Carbonate_hardgrounds subject Category:Historical_geology.
- Carbonate_hardgrounds subject Category:Limestone.
- Carbonate_hardgrounds subject Category:Sedimentology.
- Carbonate_hardgrounds type Subfield.
- Carbonate_hardgrounds comment "Carbonate hardgrounds are surfaces of synsedimentarily cemented carbonate layers that have been exposed on the seafloor (Wilson and Palmer, 1992). A hardground is essentially, then, a lithified seafloor. Ancient hardgrounds are found in limestone sequences and distinguished from later-lithified sediments by evidence of exposure to normal marine waters.".
- Carbonate_hardgrounds label "Carbonate hardgrounds".
- Carbonate_hardgrounds sameAs Terra_dura_carbonatada.
- Carbonate_hardgrounds sameAs Surface_durcie.
- Carbonate_hardgrounds sameAs Hard_ground.
- Carbonate_hardgrounds sameAs m.03h17jn.
- Carbonate_hardgrounds sameAs Q3783332.
- Carbonate_hardgrounds sameAs Q3783332.
- Carbonate_hardgrounds wasDerivedFrom Carbonate_hardgrounds?oldid=682372571.
- Carbonate_hardgrounds depiction Hardground_oblique_Ordovician_071514c.jpg.
- Carbonate_hardgrounds isPrimaryTopicOf Carbonate_hardgrounds.