11. DATA REPORT: MG/CA, SR/CA, MN/CA, AND OXYGEN AND CARBON ISOTOPE RECORDS OF PLIOCENE-PLEISTOCENE FORAMINIFERS FROM ODP LEG 202 SITE 1237
11. DATA REPORT: MG/CA, SR/CA, MN/CA, AND OXYGEN AND CARBON ISOTOPE RECORDS OF PLIOCENE-PLEISTOCENE FORAMINIFERS FROM ODP LEG 202 SITE 1237
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11. 数据报告：ODP LEG 202 站点 1237 的上新世-更新世有孔虫的 MG/CA、SR/CA、MN/CA 以及氧和碳同位素记录
DOI：
10.2973/odp.proc.sr.202.206.2006
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发表时间：
2006
影响因子：
5
通讯作者：
M. Wara
中科院分区：
文献类型：
--
作者：
Isotope Records;Pleistocene Foraminifers;M. Wara;A. Ravelo;M. Wara
海洋钻探计划（ODP） 1237站点在秘鲁-智利边缘的浮游生物和底栖有孔虫的镁/钙、锶/钙、锰/钙以及氧和碳同位素的岩心记录为该地区过去6万年的气候历史提供了重要信息。这些记录可以用来推断一个地区的海表温度（SST）和海表盐度（SSS）历史，该地区今天与大量的风应力旋流驱动的上升流有关（Shipboard Scientific Party, 2003）。1237站点位于16°0.421’s, 76°22.685’w，南美洲大陆西南约140公里处。基地位于纳斯卡山脊东侧一个相对平坦的长椅上，水深3212米。对构造回溯路径的估计表明，1237站点在过去6海里向东移动了~3°（船上科学小组，2003）。在现代，根据海洋颜色的估算，在温度、盐度、营养物质和初级生产力方面，沿着回溯路径存在着强烈的地带性梯度，向西（东）的海水较暖（冷），盐度较低（高），营养物质较低（高），生产力较低（高）（Shipboard Scientific Party, 2003）。因此，如果该地区的条件在过去6年中保持不变，那么该遗址将经历所有这些属性的减少，如1瓦拉，w和拉维罗，ac, 2006。资料报告：ODP Leg 202 Site 1237上新世-更新世有孔虫的Mg/Ca、Sr/Ca、Mn/Ca和氧、碳同位素记录。在Tiedemann， R., Mix, a.c., Richter， C.和Ruddiman， W.F.（主编），Proc. ODP, Sci.。Results, 2002: College Station, TX (Ocean Drilling Program), 1-19。doi:10.2973/ odp.proc.sr.202.206.2006 2Stanford Law School, Crown Quadrangle, 559 Nathan Abbot Way， CA, 94305， USA。mwara@stanford.edu 3加州大学海洋科学系/海洋科学研究所，Santa Cruz High Street 1156, CA Santa Cruz 95064， USA
Downcore records of magnesium/calcium, strontium/calcium, manganese/calcium, and oxygen and carbon isotopes of planktonic and benthic foraminifers from Ocean Drilling Program (ODP) Site 1237 on the Peru-Chile margin provide critical information regarding the history of climate in the region over the past 6 m.y. Specifically, these records can be used to infer the sea-surface temperature (SST) and seasurface salinity (SSS) history of a region that today is associated with substantial wind stress curl-driven upwelling (Shipboard Scientific Party, 2003). Site 1237 is located at 16°0.421′S, 76°22.685′W, ~140 km southwest of the South American continent. The site is on a relatively flat bench on the eastern flank of the Nazca Ridge at a water depth of 3212 m. Estimates of the tectonic backtrack path indicate that Site 1237 has moved ~3° eastward over the past 6 m.y. (Shipboard Scientific Party, 2003). In the modern day, there exist strong zonal gradients along the backtrack path in temperature, salinity, nutrients, and primary productivity as estimated from ocean color with warmer (cooler), lower (higher) salinity, lower (higher) nutrient, and lower (higher) productivity waters to the west (east) (Shipboard Scientific Party, 2003). Thus, if conditions in the region have remained constant over the past 6 m.y., the site would have experienced a reduction in all of these properties as 1Wara, M.W., and Ravelo, A.C., 2006. Data report: Mg/Ca, Sr/Ca, Mn/Ca, and oxygen and carbon isotope records of Pliocene–Pleistocene foraminifers from ODP Leg 202 Site 1237. In Tiedemann, R., Mix, A.C., Richter, C., and Ruddiman, W.F. (Eds.), Proc. ODP, Sci. Results, 202: College Station, TX (Ocean Drilling Program), 1–19. doi:10.2973/ odp.proc.sr.202.206.2006 2Stanford Law School, Crown Quadrangle, 559 Nathan Abbot Way, Stanford CA, 94305, USA. mwara@stanford.edu 3Ocean Sciences Department/Institute of Marine Sciences, University of California, Santa Cruz, 1156 High Street, Santa Cruz CA 95064, USA.