搜索结果: 1-14 共查到“知识库 地质学 ocean”相关记录14条 . 查询时间(0.092 秒)
Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean
Andaman Forearc Basin Neogene Uplift Invisible Bank Outerarc Stratigraphy
2018/4/2
Interpretation of new multichannel seismic reflection data from the Andaman Forearc Basin (AFB) in the northern Indian Ocean is presented here. The highquality multichannel seismic data from the Andam...
Major and trace element compositions and resource potential of ferromanganese crust at Takuyo Daigo Seamount, northwestern Pacific Ocean
Fe-Mn crust Takuyo Daigo Seamount northwestern Pacific Ocean resource potential evaluation
2017/4/10
We report major element and trace element compositions of ferromanganese crusts (Fe-Mn crusts) on Takuyo Daigo
Seamount, northwestern Pacific Ocean. Highly enriched elements in these crusts, such as ...
Geological factors responsible for REY-rich mud in the western North Pacific Ocean: Implications from mineralogy and grain size distributions
REY-rich mud biogenic calcium phosphate phillipsite pelagic sediment grain size distribution
2017/4/10
Seven piston cores were collected from the seafloor ~250 km south of Minamitorishima Island in the western North
Pacific Ocean during the cruise KR13-02 of R/V Kairei; in some portions of cores PC04 ...
Southern Exposure: New Paleoclimate Insights From Southern Ocean and Antarctic Margin Sediments
Southern Ocean Antarctic Margin Sediments
2015/7/15
Much of what is known about the evolution of Antarctica's cryosphere in the geologic past is derived from ice-distal deep-sea sedimentary records. Recent advances in drilling technology and climate pr...
Re–Os isotope geochemistry in the surface layers of ferromanganese crusts from the Takuyo Daigo Seamount, northwestern Pacific Ocean
ferromanganese crust Re and Os isotopes geochemistry Takuyo Daigo Seamount northwestern Pacific Ocean
2017/4/10
Os isotope compositions in ferromanganese crusts (Fe–Mn crusts) have been used for the dating of model ages from
present to the Late Cretaceous. This dating method assumes that the Fe–Mn crusts prese...
Neodymium isotopic composition and concentration in the Southwest Pacific Ocean
Southwest Pacific Nd isotopic composition Antarctic Intermediate Water (AAIW) Upper and Lower Circumpolar Deep Waters (UCDW and LCDW) GEOTRACES
2017/4/11
We report two vertical profiles of the concentration and isotopic composition of neodymium (Nd) in seawater samples
collected at 20°S and 30°S along a longitude of 170°W in the Southwest Pacific Ocea...
The molybdenum isotopic composition of the modern ocean
Mo isotopes seawater mass-dependent fractionation reference material for Mo isotopic composition
2017/4/11
Natural variations in the isotopic composition of molybdenum (Mo) are showing increasing potential as a tool in
geochemistry. Although the ocean is an important reservoir of Mo, data on the isotopic ...
Nitrogen cycling in a deep ocean margin sediment (Sagami Bay, Japan)
Nitrogen cycling deep ocean margin sediment Sagami Bay Japan
2014/4/18
On the basis of in situ NO3-1 microprofiles and chamber incubations complemented by laboratory-based assessments of anammox and denitrification we evaluate the nitrogen turnover of an ocean margin sed...
Focusing of phytodetritus deposition beneath a deep-ocean front, Chatham Rise, New Zealand
Focusing of phytodetritus deposition beneath deep-ocean front Chatham Rise New Zealand
2014/4/22
In October 2001, we observed a deep-ocean phytodetritus deposition event on Chatham Rise beneath the Subtropical Front (STF). The origin of this phytodetritus was probably an extensive phytoplankton b...
A hydrous melting and fractionation model for mid-ocean ridge basalts: Application to the Mid-Atlantic Ridge near the Azores
A hydrous melting mid-ocean ridge basalts
2014/4/8
The major element, trace element, and isotopic composition of mid-ocean ridge basalt glasses affected
by the Azores hotspot are strongly correlated with H2O content of the glass. Distinguishing the r...
Formation of Fe-silicates and Fe-oxides on bacterial surfaces in samples collected near hydrothermal vents on the Southern Explorer Ridge in the northeast Pacific Ocean
Formation Fe-silicates Fe-oxides hydrothermal vents Southern Explorer Ridge the northeast Pacific Ocean
2012/4/1
Samples collected in low-temperature (2–508 C) waters near hydrothermal vents of the Southern Explorer Ridge, in the northeast Pacific Ocean, contained fine ( ,500 nm) Fe-and Mn-oxide and Fe-silicate ...
Early dlagenesis and the origin of diagenetic carbonate in sediment recovered from the argo basin,northeastern indian ocean(site 765)
diagenetic carbonate northeastern indian ocean early dlagenesis Palygorskite
2011/11/14
Early dlagenesis and the origin of diagenetic carbonate in sediment recovered from the argo basin,northeastern indian ocean(site 765).
BASAL DOLOMITIC SEDIMENTS, TYRRHENIAN SEA, OCEAN DRILLING PROGRAM LEG 107
BASAL DOLOMITIC SEDIMENTS TYRRHENIAN SEA Palygorskite
2011/11/14
Basal dolomitic sediments were recovered at three drill sites in the Tyrrhenian Sea during Ocean Drilling Program (ODP) Leg 107 (Sites 650, 651, and 655). These sediments overlie the basaltic basement...
Expandable Sepiolite from Ninetyeast Ridge, Indian Ocean
Chemical composition Ethylene glycol Expansion Sepiolite X-ray powder diffraction
2012/1/5
The structure of sepiolite from a piston core obtained on Ninetyeast Ridge in the Indian Ocean was modified by exposure to ethylene glycol vapor. With ethylene glycol, the sepiolite 011 X-ray powder d...