搜索结果: 1-9 共查到“地质学 critical”相关记录9条 . 查询时间(0.109 秒)
NSF-supported scientists to present research results on Earth's critical zone at AGU fall meeting
NSF scientists Earth's critical zone AGU fall meeting
2016/11/29
The thin veneer of Earth's surface that stretches from the top of the forest canopy to the base of bedrock is known as the "critical zone." It's where fresh water flows, rock turns to soil, and life f...
A new explanation for the unusual critical behavior of calcite and sodium nitrate, NaNO3
A new explanation unusual critical behavior calcite sodium nitrate NaNO3
2012/4/1
The phase-transition behavior of both calcite and the isostructural compound NaNO have longbeen thought to be anomalous. In particular, the ? critical exponent for the orientational order-disor-der t...
Synthesis of Smectite Clay Minerals: A Critical Review
Beidellite Fluoride Hectorite Hydrothermal Montmorillonite Nontronite Phyllosilicate Saponite Sauconite Stevensite
2011/12/7
Abstract: Smectites are one of the most important groups of phyllosilicates found in soils and sediments, and certainly one of the most difficult to study. New information about the formation mechanis...
Laplacian and bond critical point properties of the electron density distributions of sulfide bonds: A comparison with oxide bonds
oxide bonds electron density distributions sulfide bonds VSCCs
2012/3/31
Topologicalandbondcriticalpointpropertiesofelectrondensitydistributions,(r),were
calculatedforaseriesofsul?demolecules,containing?rst-andsecond-rowmaingroup
2(r),showthatthevalenceshellcharge
M-cat...
Magma transport and metasomatism in the mantle: A critical review of current geochemical models---Reply to Navon et al.
Magma transport metasomatism mantle:current geochemical models
2012/4/6
Navon et al. (1996) demonstrated that the Navon and Stolper (1987) model can be formulated to reproduce a pattern oflight-ion lithophile trace element (LIL) enrichments produced by a single, small-sca...
Magma transport and metasomatism in the mantle: A critical review of current geochemical models---Discussion
Magma transport metasomatism mantle critical review current geochemical models---Discussion
2012/4/6
Nielson and Wilshire (1993) promised a review of geochemically based models for magma transport and metasomatism in the mantle. However, they focused ondiscrediting the chromatographic modelofNavon an...
Clay Mineral Thermometry—A Critical Perspective
Chlorite thermometry Clay thermometry Illite crystallinity Illite solubility Metastability Ostwald step rule Smectite solubility Stability
2011/12/28
Diagenetic clay minerals usually occur as heterogeneous assemblages of submicroscopic layers consisting of different structure types such as illite, smectite and chlorite, with variable composition wi...
Hysteresis in the Binary Exchange of Cations on 2:1 Clay Minerals: A Critical Review
cation exchange hysteresis quasi-crystal crystalline swelling kinetics smectites
2011/12/28
The binary exchange of cations on clays and soils is generally regarded as a thermodynamically reversible process. The literature on soil chemistry and geochemistry, however, abounds with reports on c...
STRUCTURE AND ROCK SEQUENCES OF THE CRITICAL ZONE OF THE EASTERN BUSHVELD COMPLEX
STRUCTURE ROCK SEQUENCES THE CRITICAL ZONE THE EASTERN BUSHVELD COMPLEX
2014/4/8
Investigations of the Critical Zone of the eastern part of the Bushveld Complex during 1952-55 and 1961 indicate that the zone is divisible along its strike into western, central and southern sectors....