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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...
Many studies in the past decade have sought to explore the origin and evolution of water in planetary bodies based on the hydrogen isotopic compositions of apatite. However, no investigation has stud...
The apatite supergroup includes minerals with a generic chemical formula IXM12 VIIM23(IVTO4)3X (Z  2); chemically they can be phosphates, arsenates, vanadates, silicates, and sulphates. Themaximum sp...
The Karaçayır syenite, intruding the Palaeozoic crustal metamorphics and unconformably overlain by Upper Paleocene to Eocene Tokuş formation in the north of Sivas (east-central Anatol...
that other techniques will emerge which may bypass the need for such irradiation. Two side benefits of such a development would be the avoidance of a need for FTD laboratories to hand...
A method is presented that permits the length of any horizontal, confined fission-track inclined at a specified angle to the crystallographic c axis in apatite to be converted to an equivalent track ...
A new model for examining fission-track data from natural specimens has been developed on the basis of new laboratory data describing fission-track annealing in a wide variety of apatites and the em...
Annealing rates for fission tracks in apatite vary markedly as a complex function of composition, based on an experimental study of 15 well-characterized, compositionally diverse apatites. Extensive ...
Apatite crystals in a sample of biotite granodiorite from the Idaho batholith display complex chemi- cal zoning, characterized by abrupt changes in REE+Y+Si content, more subtle variations in S, Na, ...
Accessory monazite crystals in granites are commonly unstable during amphibolite fa-cies regional metamorphism and typically become mantled by newly formed apatite-allan-ite-epidote coronas. This dist...
Apatitecrystalsfromtwotypesofsampleswereanalyzedbyelectronmicroprobefor15majorandtraceelements:(1)apatiteinHO-andS-saturatedexperimentalchargesof the1982ElChicho!ntrachyandesiteand(2)apatiteinvolcani...
SinglecrystalsofnaturalF-richapatiteand800keVKr ion-beam¤Camorphizedapatit wereirradiatedbyanelectronbeaminatransmissionelectronmicroscopeoverarange ofbeamenergiesandbeamcurrents.Irradiationofcrysta...
TEispaperreports observations ofetched internal {OOO1}, {lOTO},{1120}, {loT1},and {1121} surfaces of Durango apatite. Three types of surfaces are distinguished: Ptype, S type, and T type. After initia...
Oxygen isotope composition of three types of unique nodules which consist of amorphous silica-apatite, cristobalite-apatite and tridymite-apatite associations interspersed amidst basaltic pyroclastics...
During an electron microscope study of the weathering of granite from southern New South Wales, Australia, an assemblage of minerals including florencite and rhabdophane was discovered replacing apati...

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