نتایج جستجو برای: foraminifer
تعداد نتایج: 296 فیلتر نتایج به سال:
[1] Water column stratification increased at climatic transitions from cold to warm periods during the late Quaternary and led to anoxic conditions and sapropel formation in the deep eastern Mediterranean basins. Highresolution data sets on sea-surface temperatures (SST) (estimated from U37 k0 indices) and dO of planktonic foraminifer calcite (dOfc) across late Pleistocene sapropel intervals sh...
[1] During the last ice age, the density gradient across the Florida Current was reduced, implying a reduction in the flow of the Gulf Stream through the Florida Straits. Here we investigate the possibility that a significant portion of this wind-driven western boundary flow bypassed the Florida Straits during glacial times due to either changes in bathymetry induced by the sea level drop or ch...
Mn∕Ca intra- and inter-test variability in the benthic foraminifer <i>Ammonia tepida</i>
Abstract. Marine calcification is an important component of the global carbon cycle. The mechanism by which some organisms take up inorganic for production their shells or skeletons, however, remains only partly known. Although foraminifera are responsible a large part calcium carbonate production, process they concentrate debated. Some evidence suggests that seawater taken vacuolization and pa...
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