hemipelagic

hemipelagic

[¦he·mē·pə′laj·ik]
(ecology)
Of the biogeographic environment of the hemipelagic region with both neritic and pelagic qualities.
References in periodicals archive ?
The Mughal Kot Formation bears a strong potential of hydrocarbon reservoir because such hemipelagic carbonates and turbidite sandstone are reported to be good hydrocarbon reservoirs e.g.
In this stage, a gradual shift from the deposition of fine-grained low-density mud to settling of hemipelagic mud and eventually to normal pelagic sedimentation takes place (Mutti et al.
The sediments mostly consist of a coarse-grained fan-delta succession and an overlying fine-grained succession of hemipelagic mudstone with thin interbeds of siltstone and sandstone [21-23].
(1992) interpret the correlative Farmers Member as proximal turbidites with intercalated hemipelagic muds, and Hannibal (1995) further refined the deposit as turbidites or storm deposits based on the repetitive nature of the sandstone and shale couplets and sedimentary structures within the sandstones.
The sediment profile at Site C0014 exhibits a transition from hemipelagic ooze with pumiceous volcaniclastic sediments to a hydrothermally altered sequence of clays within the top ~10 mbsf of sediment [7].
The Juan de Fuca ridge has received hemipelagic and turbidite deposits since the late Pleistocene.
(2001): Geochemistry of pelagic and hemipelagic carbonates: criteria for identifying systems tracts and sea-level change.
Baltuck, "Provenance and distribution of tethyan pelagic and hemipelagic siliceous sediments, pindos mountains, Greece," Sedimentary Geology, vol.
The classic interpretation of organic-rich shale ([greater than or equal to] 0.5% total organic carbon) deposition emphasized continuous hemipelagic deposition in deep, quiet, low energy and stagnant basins, often with a stratified water column.
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.
Goodfellow, W.D., and Blaise, B., 1988, Sulfide formation and hydrothermal alteration of hemipelagic sediment in Middle Valley, northern Juan de Fuca Ridge: Canadian Mineralogist, v.