Coastal upwelling gradient during the late pleistocene.
المصدر
Proc. scientific results, ODP, Leg 117, Oman Margin/Neogene package, p. 265-276
الناشر
ODP, Texas A&M University, College Station.
الملخص الإنجليزي
Upwelling occurs during the summer off the coast of Oman when the Asian monsoon produces strong southwest winds in the northern Arabian Sea. We reconstructed the upwelling faunal gradient using high resolution oxygen isotope stratigraphy to correlate between Hole 723B on the Oman Margin, and a core from the Owen Ridge (RC2761), adjacent Site 722. A gradient similar in magnitude to the present, implying upwelling conditions similar to today existed during each interglacial time during the late Pleistocene interval from 0 to 300 k.y. The gradient was reduced or absent during glacial times implying diminished southwest winds along the coast of Oman, not strong enough to produce an environmental gradient between the coast and offshore sites.
المعرف
DOI: 10.2973/odp.proc.sr.117.144.1991
