搜索结果: 1-12 共查到“地质学 CL”相关记录12条 . 查询时间(0.093 秒)
磷灰石广泛分布于岩浆、热液及变质体系，是记录俯冲带等复杂地质过程的良好载体；其对流体活动极为敏感，具有精准示踪含矿流体及矿化剂等关键元素的来源及迁移-富集-沉淀机理的潜力。在这些地质过程中，Cl与影随行且主要赋存于磷灰石等矿物中。因此，磷灰石Cl同位素体系是为俯冲带地质作用和矿床学研究量身打造的“特异性”示踪工具。此外，磷灰石Cl同位素是研究月球等天体挥发分特征、去气过程以及与地球亲缘性等特征的重...
Fluxes of volatiles (H2O, CO2, N2, Cl, F) from arc volcanoes
volcanoes fluxes water halogens sources
2017/8/10
This review gives an overview of the estimates of volatile emissions from arc and mid-ocean ridge volcanoes to the atmosphere and hydrosphere with particular focus on H2O, CO2, N2, Cl and F. The gas c...
为探讨榴辉岩中磷灰石的矿物化学特征及榴辉岩中某些相关元素的地球化学行为,对中国大陆科学钻探(CCSD)主孔500~540m深度的榴辉岩样品进行了岩石化学及磷灰石的矿物化学分析。这些榴辉岩具有不同的矿物组成和化学成分,并可据此分为上下两段,上段500~530m为正常榴辉岩,下段530~540m为高Ti榴辉岩和高Ti-Fe榴辉岩,其原岩可能为类似于辉长质和苦橄质的基性—超基性岩石。其中的磷灰石成分没有...
青岛即墨Cl-Na型温泉沉积物矿物学标识与沉积相研究
Cl-Na型温泉 矿物学标识 沉积相 沉积模式
2013/11/20
经野外取样和XRD测试技术,根据温泉沉积物的矿物学标识,将即墨Cl-Na型温泉沉积物划分为喷流相、越流相沉积和喷口-通道亚相沉积,并阐述其基本概念、成因以及"盆下源"沉积模式;建立起蛋白石-石膏-岩盐-锌铅铁矾-赤铁矿喷流沉积相和通道-喷口沉积亚相的矿物学标识.上述研究有以下几方面意义:①界定温泉沉积物的概念和划分成因类型;②建立盲温泉与古地热活动寻找标识,圈定地热中心,指导现代温泉地热资源开发;...
Melt viscosities in the system Na-Fe-Si-O-F-Cl: Contrasting effects of F and Cl in alkaline melts
Melt viscosities Na-Fe-Si-O-F-Cl alkaline melts
2012/4/1
The shear viscosities of melts in the system Na-Fe-Si-O-F-Cl were determined over a wide range of temperatures (400–1200 8 C) at 1 atm pressure in air. The compositions are based on the addition of Fe...
Artificial weathering of the ordinary chondrite Allegan: Implications for the presence of Cl- as a structural component in akaganéite
Artificial weathering ordinary chondrite Allegan presence of Cl- structural component akaganéite
2012/4/6
Asampleofanordinarychondritefall,Allegan,wasshownby FeMo!§ssbauerspectroscopytobeunweathered.Usingaerateddeionizedwaterat25 and0C,andinone
casewithdissolvedsaltsadded,anattemptwasmadetosimulatemeteor...
Cl incorporation into successively zoned amphiboles from the Ramnes cauldron, Norway
Cl incorporation successively zoned amphiboles Ramnes cauldron Norway
2012/4/5
AmphibolefromalkaligranitesintheRamnescauldronintheOsloriftwasaltered
hydrothermallybycorrosionandgrowththroughmultipleeventsof?uidcirculation.The
alterationdevelopedsuccessivezonesofamphiboleatthec...
Crystal chemistry and IR spectroscopy of Cl- and SO4-bearing cancrinite-like minerals
Crystal chemistry IR spectroscopy Cl- SO4-bearing cancrinite-like minerals
2012/4/6
CI-and S04-bearing cancrinite-like mineralsfrom Italian localities werestudied by meansofEPMA,X-raydiffraction, and IR spectroscopy to relate their chemicalcompo-sition, IR data, and structural featur...
Cl-rich biotite and amphibole from Black Rock Forest, Cornwall, New York
Cl-rich biotite amphibole Black Rock Forest
2012/4/5
Biotite and amphibole containing up to 4.6 and 5.1 wt%Cl,respectively, are found in gneisses from BlackRock Forest, located within the Hudson Highlands ofNewYork. The area wasmetamorphosed to granulit...
Influence of Chloride on the Formation of Iron Oxides from Fe(II) Chloride. II. Effect of [Cl] on the Formation of Lepidocrocite and its Crystallinity
Chloride Green rust Iron oxides Lepidocrocite Oxidation X-ray powder diffraction
2012/2/3
Diffractograms of lepidocrocites formed from the oxidation of Fe(II) chloride solutions at pH 7 and 25∑C showed differential line broadening with (0k0) reflections being much sharper than (hk0) or (hk...
Influence of Chloride on the Formation of Iron Oxides from Fe(II) Chloride. I. Effect of [Cl]/[Fe] on the Formation of Magnetite
Akaganeite Chloride Green rust Iron Lepidocrocite Maghemite Magnetite Synthesis
2012/2/3
The formation of fine-grained magnetite (∼0.1 µm) at pH 7 and 25°C from aeration of Fe(II) chloride solutions is presented. The magnetite converted at 105°C to maghemite with poorly develo...
The Syntheses of Hydrotalcite-Like Compounds and Their Structures and Physico-Chemical Properties I: The Systems Mg2+-Al3+-NO3−, Mg2+-Al3+-Cl−, Mg2+-Al3+-ClO4−, Ni2+-Al3+-Cl− and Zn2+-Al3+-Cl−
Syntheses Hydrotalcite-Like Compounds Physico-Chemical Properties
2012/2/15
The basic salts of this system were prepared and their structures and physico-chemical properties were studies by electron microscopy, chemical analysis, X-ray powder diffraction, thermal analysis, i....