hemipelagic

hemipelagic

[¦he·mē·pə′laj·ik]
(ecology)
Of the biogeographic environment of the hemipelagic region with both neritic and pelagic qualities.
Mentioned in ?
References in periodicals archive ?
2001): Geochemistry of pelagic and hemipelagic carbonates: criteria for identifying systems tracts and sea-level change.
Strontium isotopes and sedimentology of a marine triassic succession (upper ladinian) of the westernmost Tethys, Spain
Diagenesis, regular growth records of seasonality in inoceramidbivale shells from mid-Maastrichtian hemipelagic beds of the Bay of Biscay.
Microfacies and depositional environments of upper cretaceous Kawagarh Formation from Chinali and Thoba sections Northeastern Hazara Basin, lesser Himalayas, Pakistan
A stepwise extinction during the Mulde Event in the Homerian (Wenlock, Silurian) has been suggested for hemipelagic fauna such as graptolites and conodonts (Jaeger 1991; Jeppsson 1993; Kaljo et al.
Ultrastructures of porostromate microproblematica from a Mulde Event (Homerian, Silurian) bioherm in Podolia, Western Ukraine
In the deepest block (I) surficial sediments were classified as Globigerina clay devoid of an oxidized layer, whilst the adjacent block (II) contained an assorted biogenic hemipelagic biota (foraminifera, pteropods, scaphopods, micromolluscs, and echinoid and sponge spicules) and a discrete oxidized layer.
Surface sediment survey of the seabed on the northwestern slope of Cuba, southern straits of Florida/Estudio del sedimento superficial del lecho marino frente a la costa noroccidental de Cuba, en el estrecho de la Florida/ Estudo do sedimento superficial do leito marinho em frente da costa noroeste de Cuba, no estreito da Florida
1988, Sulfide formation and hydrothermal alteration of hemipelagic sediment in Middle Valley, northern Juan de Fuca Ridge: Canadian Mineralogist, v.
Igneous Rock Associations 11. The geology and petrology of seafloor volcanic rocks of the northeastern Pacific Ocean, Offshore Canada
Both sections represent hemipelagic settings during the end Maastrichtian and early Danian.
El limite Cretacico-Terciario en el registro marino de la Peninsula Iberica: fases de impacto meteoritico, diagenesis y efectos paleoambientales deducidos del magnetismo de rocas
ABSTRACT: Mid- to outer shelf (= offshore) marine deposits of hemipelagic dark-gray mudstone comprising the Mahantango Formation (Middle Devonian), Pike County, Pennsylvania, have yielded an assemblage of trace fossils.
Trace fossils from the Mahantango formation (upper middle Devonian) Pike County, Pennsylvania
Konta (1968) studied phyllosilicates in 122 samples of hemipelagic and pelagic muds from the northwestern region of the Indian Ocean surrounding the Arabian Peninsula.
Phyllosilicates in the sediment-forming processes: weathering, erosion, transportation, and deposition
Dm-bedded pelagic to hemipelagic siliceous mudstones and cherts and distal volcanic and calcareous turbidites form the substrate of the unconformity.
Late Oligocene larger foraminifera from Nosara (Nicoya Peninsula, Costa Rica) and indward (Carriacou, Lesser Antilles), Calibrated by [sup.87]SR/ [sup.86]SR isotope stratigraphy
The Monterey Formation consists of siliceous hemipelagic shale deposited at bathyal depth (Pisciotto and Garrison 1981), whereas the Puente Formation consists of more terrigenous sediments derived from the southeastern San Gabriel Mountains deposited as turbidites on submarine fans at bathyal depths (Critelli et al.
A new late Miocene species of sciaenid fish, based primarily on an in situ otolith from California
These sediments occur between the hemipelagic organic-rich muds on the continental margin and carbonate sediments on the shallow shelf plateau--North Estonian Confacies Belt.
Dolomitization and sedimentary cyclicity of the Ordovician, Silurian, and Devonian rocks in South Estonia/Louna-Eesti Ordoviitsiumi, Siluri ja Devoni kivimite dolomiidistumine ning settimise tsuklilisus
The box cores were collected from different environmental settings, from the iceberg-dominated glacial marine environment of East Greenland to the hemipelagic marine environment of the SW Iceland continental shelf (Fig.
Accumulation in East Greenland fjords and on the continental shelves adjacent to the Denmark strait over the last century based on [Pb.sup.210] geochronology

Encyclopedia browser ?
Full browser ?