Spatiotemporal variability in the δ18O-salinity relationship of seawater across the tropical Pacific Ocean [0.03%]
热带太平洋海水δ18O-盐度关系的时空变化性
Jessica L Conroy,Diane M Thompson,Kim M Cobb et al.
Jessica L Conroy et al.
The relationship between salinity and the stable oxygen isotope ratio of seawater (δ18Osw) is of utmost importance to the quantitative reconstruction of past changes in salinity from δ18O values of marine carbonates. This relationship is ...
Did Photosymbiont Bleaching Lead to the Demise of Planktic Foraminifer Morozovella at the Early Eocene Climatic Optimum? [0.03%]
底栖有孔虫光合共生藻退化导致早渐新世MorozovellA消失？
Valeria Luciani,Roberta D&#x;Onofrio,Gerald R Dickens et al.
Valeria Luciani et al.
The symbiont-bearing mixed-layer planktic foraminiferal genera Morozovella and Acarinina were among the most important calcifiers of early Paleogene tropical-subtropical oceans. A marked and permanent switch in the abundance of these genera...
Correlating carbon and oxygen isotope events in early to middle Miocene shallow marine carbonates in the Mediterranean region using orbitally tuned chemostratigraphy and lithostratigraphy [0.03%]
基于轨道调谐的化学地层学和岩性地层学在地中海地区早—中 Miocene 浅水碳酸盐岩中的碳氧同位素事件对比
Gerald Auer,Werner E Piller,Markus Reuter et al.
Gerald Auer et al.
During the Miocene prominent oxygen isotope events (Mi-events) reflect major changes in glaciation, while carbonate isotope maxima (CM-events) reflect changes in organic carbon burial, particularly during the Monterey carbon isotope excursi...
Pliocene-Pleistocene evolution of sea surface and intermediate water temperatures from the southwest Pacific [0.03%]
南太平洋海表和中层水体温度的上新世-更新世演变历史
Erin L McClymont,Aurora C Elmore,Sev Kender et al.
Erin L McClymont et al.
Over the last 5 million years, the global climate system has evolved toward a colder mean state, marked by large-amplitude oscillations in continental ice volume. Equatorward expansion of polar waters and strengthening temperature gradients...
Responses of ocean circulation and carbon cycle to changes in the position of the Southern Hemisphere westerlies at Last Glacial Maximum [0.03%]
南半球西风带位置变化对末次冰盛期海洋环流和碳循环的影响响应
Christoph Völker,Peter Köhler
Christoph Völker
We explore the impact of a latitudinal shift in the westerly wind belt over the Southern Ocean on the Atlantic meridional overturning circulation (AMOC) and on the carbon cycle for Last Glacial Maximum background conditions using a state-of...
Influence of variable rates of neritic carbonate deposition on atmospheric carbon dioxide and pelagic sediments [0.03%]
变碳酸盐岩沉积速率对大气二氧化碳和远洋沉积物的影响
J C Walker,B C Opdyke
J C Walker
Short-term imbalances in the global cycle of shallow water calcium carbonate deposition and dissolution may be responsible for much of the observed Pleistocene change in atmospheric carbon dioxide content. However, any proposed changes in t...
Photosynthetic fractionation of 13C and concentrations of dissolved CO2 in the central equatorial Pacific during the last 255,000 years [0.03%]
过去25.5万年来赤道东太平洋碳同位素分馏和海水二氧化碳含量的变化
J P Jasper,J M Hayes,A C Mix et al.
J P Jasper et al.
Carbon isotopically based estimates of CO2 levels have been generated from a record of the photosynthetic fractionation of 13C [is equivalent to epsilon(p)] in a central equatorial Pacific sediment core that spans the last approximately 255...
Does sedimentary organic delta 13C record variations in quaternary ocean [CO2(aq)]? [0.03%]
第四纪海水中的[CO2(aq)]变化在沉积有机物的碳同位素组成中有无记录？
G H Rau,P N Froelich,T Takahashi et al.
G H Rau et al.
Ocean surface water [CO2(aq)] variations based on glacial/interglacial changes in sediment delta 13Corg are shown to compare favorably with reconstructions based on ice core [CO2]. In particular, an approximate 80 microatmospheres increase ...
L C Sloan,J C Walker,T C Moore Jr
L C Sloan
Increased oceanic heat transport has often been cited as a means of maintaining warm high-latitude surface temperatures in many intervals of the geologic past, including the early Eocene. Although the excess amount of oceanic heat transport...