搜索结果: 1-15 共查到“理学 Diagenesis”相关记录55条 . 查询时间(0.426 秒)
中国地质大学科学技术发展院张磊（博士生）， 赵来时等GPMR国家重点实验室 Geochimica et Cosmochimica Acta, 2017. Raman spectral, elemental, crystallinity, and oxygen-isotope variations in conodont apatite during diagenesis
牙形；石磷；灰石；古海洋；古气候
2021/10/21
近日，中国地质大学地质过程与矿产资源国家重点实验室赵来时教授团队在国际著名期刊《Geochimica et Cosmochimica Acta》发表题为Raman spectral, elemental, crystallinity, and oxygen-isotope variations in conodont apatite during diagenesis（牙形石磷灰石的拉曼光谱、元素...
This conference aims to promote the exchange of new ideas among the leading experts from industry, academia, and government on the controls and impacts of inorganic and organic diagenesis on mudstone ...
Travertines and calcareous tufa deposits:an insight into diagenesis
carbonate diagenesis freshwater karst micrite precipitation sparite tufa Gtravertine
2009/12/7
Travertines and calcareous tufa are porous deposits formed by interactions between ambient precipitation of calcium carbonate and resident organisms under different temperature regimes. The distinctio...
Diagenesis and weathering of quartzite at the palaeic surface on the Varanger Peninsula,northern Norway
Diagenesi and sweathering of quartzite palaeic surface Varanger Peninsula
2009/12/2
Weathered zones in quartzitic bedrock on the Hak alancˇearru Mountain on the Varanger Peninsula, northern Norway, have been examined, as has the timing of their development. The weathered zones are ma...
Accumulation of prokaryotic remains during organic matter diagenesis in surface sediments off Peru
Accumulation of prokaryotic organic matter diagenesis
2014/4/18
Bacterial biomarkers (D-amino acids and muramic acid) were investigated in surface sediments (0–1 cm) at 22
stations in the Peru margin. Concentrations were used to quantitatively estimate the relati...
Organic matter diagenesis and bacterial contributions to detrital carbon and nitrogen in the Amazon River system
Organic matter diagenesis bacterial contributions
2014/4/18
Amino sugars and amino acids, including the bacterial biomarkers muramic acid and D-amino acids, were
measured to investigate the diagenetic alterations of and microbial contributions to detrital org...
期刊信息
篇名
Diagenesis of magnetic minerals in the intertidal sediments of the Yangtze Estuary China and its environmental significance
语种
英文
撰写或编译
撰写
作者
Zhang Weiguo,Lizhong Yu.S.M.Hutchinson
第一作者单位
刊物名称...
会议信息
篇名
Diagenesis of magnetic minerals in intertidal sediments of the Yangtze Estuary, and its relationship with heavy metal pollution
语种
英文
撰写或编译
撰写
作者
Zhang Weiguo,Yu Lizhong
第一作者单位
华东师范大学
会议名称
Fun...
Early diagenesis and trophic role of extracellular DNA in different benthic ecosystems
Early diagenesis extracellular DNA different benthic ecosystems
2014/4/22
To provide new insights into the early diagenesis of extracellular deoxyribonucleic acid (DNA) and its relevance in trophodynamic processes, we collected sediment samples from a variety of coastal and...
Effects of progressive oxygen depletion on sediment diagenesis and fluxes: A model for the lower St. Lawrence River Estuary
progressive oxygen depletion sediment diagenesis fluxes A model for the lower St. Lawrence River Estuary
2014/4/21
We applied a diagenetic model to examine the effects of a decadal-timescale progressive decrease in bottomwater oxygen concentration on sediment geochemistry and fluxes across the sediment-water inter...
Hydrogen Isotopic (D/H) Composition of Organic Matter During Diagenesis and Thermal Maturation
deuterium, fossil fuel isotope exchange isotope fractionation catagenesis
2014/4/8
Changes in the D/H ratio of sedimentary organic matter (SOM) during thermal maturation have been difficult to interpret because the effects of hydrogen exchange and
kinetic fractionations are c...
Quantification of macrobenthic effects on diagenesis using a multicomponent inverse model in salt marsh sediments
Quantification of macrobenthic effects diagenesis using multicomponent inverse model salt marsh sediments
2014/5/19
Using a multicomponent inverse model, we quantified the rates of organic matter (OM) remineralization and the relative importance of major terminal electron acceptors [Fe(III)-(oxy)hydroxides and SO4-...
Early diagenesis of plant-derived dissolved organic matter along a wetland, mangrove, estuary ecotone
Early diagenesis wetland
2014/5/19
We studied the role of photochemical and microbial processes in contributing to the transformation of dissolved
organic matter (DOM) derived from various plants that dominate the Florida Everglades. ...
Decrease in molecular weight of photosynthetic products of marine phytoplankton during early diagenesis
molecular weight photosynthetic products marine phytoplankton early diagenesis
2014/5/14
Changes in the size and neutral aldose (NAld) composition of phytoplankton photosynthetic products during the early diagenetic process were experimentally examined using 13C as a tracer. Most (94.7%) ...
Origin and diagenesis of polyphosphate in lake sediments: A 31 P-NMR study
polyphosphate lake sediments
2014/5/14
Polyphosphate (poly-P) was detected with the use of
31
P nuclear magnetic resonance (NMR) spectroscopy in
sediments from a large variety of lakes with different trophic state and morphometry. In th...