Association of orogenic activity with the Ordovician radiation of marine life [0.03%]
造山运动与奥陶纪海洋生命的辐射演化之间的联系
A I Miller,S Mao
A I Miller
The Ordovician radiation of marine life was among the most substantial pulses of diversification in Earth history and coincided in time with a major increase in the global level of orogenic activity. To investigate a possible causal link be...
Were kinetics of Archean calcium carbonate precipitation related to oxygen concentration? [0.03%]
太古宙钙华沉淀的地球化学与溶解氧的关系？
D Y Sumner,J P Grotzinger
D Y Sumner
Archean carbonates commonly contain decimetre- to metre-thick beds consisting entirely of fibrous calcite and neomorphosed fibrous aragonite that precipitated in situ on the sea floor. The fact that such thick accumulations of precipitated ...
Accretionary history of the Archean Barberton Greenstone Belt (3.55-3.22 Ga), southern Africa [0.03%]
南非太古代巴伯顿绿岩带的增生历史（3.55-3.22Ga）
D R Lowe
D R Lowe
The 3.55-3.22 Ga Barberton Greenstone Belt, South Africa and Swaziland, and surrounding coeval plutons can be divided into four tectono-stratigraphic blocks that become younger toward the northwest. Each block formed through early mafic to ...
K O Pope,A C Ocampo,G L Kinsland et al.
K O Pope et al.
Analyses of geomorphic, soil, and topographic data from the northern Yucatan Peninsula, Mexico, confirm that the buried Chicxulub impact crater has a distinct surface expression and that carbonate sedimentation throughout the Cenozoic has b...
Climatic forcing of carbon-oxygen isotopic covariance in temperate-region marl lakes [0.03%]
气候引起的温带石灰湖碳、氧同位素协变现象
C N Drummond,W P Patterson,J C Walker
C N Drummond
Carbon and oxygen stable isotopic compositions of lacustrine carbonate from a southeastern Michigan marl lake display linear covariance over a range of 4.0% Peedee belemnite (PDB) in oxygen and 3.9% (PDB) in carbon. Mechanisms of delta 13 C...
Sizing up the sub-Tommotian unconformity in Siberia [0.03%]
西伯利亚次图姆米安底砾岩层序 depositional pattern 的区划研究
A H Knoll,A J Kaufman,M A Semikhatov et al.
A H Knoll et al.
Sedimentary rocks in the western Anabar region, northwestern Siberia, preserve an exceptional record of evolution and biogeochemical events near the Proterozoic-Cambrian boundary. Carbon isotopic data on petrographically and geochemically s...
Continental-pelagic carbonate partitioning and the global carbonate-silicate cycle [0.03%]
大陆远洋碳酸盐分离和全球碳酸盐硅酸盐循环
K Caldeira
K Caldeira
A carbonate-silicate geochemical cycle model is developed and used to explore dynamic and climatic consequences of constraints on shallow-water carbonate burial and possible carbon loss to the mantle associated with sea-floor subduction. Th...
Return of the coral reef hypothesis: basin to shelf partitioning of CaCO3 and its effect on atmospheric CO2 [0.03%]
珊瑚礁假说的回归：碳酸钙从盆地到大陆架的分区及其对大气二氧化碳的影响
B N Opdyke,J C Walker
B N Opdyke
Differences in the rate of coral reef carbonate deposition from the Pleistocene to the Holocene may account for the Quaternary variation of atmospheric CO2. Volumes of carbonate associated with Holocene reefs require an average deposition r...
Proximal impact deposits at the Cretaceous-Tertiary boundary in the Gulf of Mexico: a restudy of DSDP Leg 77 Sites 536 and 540 [0.03%]
墨西哥湾白垩-古近纪界线附近的近岸沉积：对DSDP航次77站点536和540的再研究
W Alvarez,J Smit,W Lowrie et al.
W Alvarez et al.
Restudy of Deep Sea Drilling Project Sites 536 and 540 in the southeast Gulf of Mexico gives evidence for a giant wave at Cretaceous-Tertiary boundary time. Five units are recognized: (1) Cenomanian limestone underlies a hiatus in which the...
Tektite-bearing, deep-water clastic unit at the Cretaceous-Tertiary boundary in northeastern Mexico [0.03%]
含 tektite 的克陶纽世末深水碎屑岩地层（于墨西哥东北部）
J Smit,A Montanari,N H Swinburne et al.
J Smit et al.
The hypothesis of Cretaceous-Tertiary (K-T) boundary impact on Yucatán, Mexico, predicts that nearby sites should show evidence of proximal impact ejecta and disturbance by giant waves. An outcrop along the Arroyo el Mimbral in northeaster...