DOLERITES

作品数：9被引量：3H指数：2
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Microdiamonds in Alkalic Dolerites from the North China Craton
《宝石和宝石学杂志（中英文）》2024年第S01期40-42,共3页Yitao Cai Fei Liu Kan Li Long Li Jingsui Yang 
江苏省自然科学基金项目(编号BK20191132);国家自然科学基金青年基金项目(编号41402075);国家留学基金委(编号201908575036)联合资助。
Diamonds on the Earth mainly occur in volcanic rocks such as kimberlites and lamproites^([1-8]),but can also be found in ultrahigh-pressure metamorphic rocks^([9-10]),meteorites^([11])and alluvial deposits^([12]).In r...
关键词：microdiamond FTIR carbon isotopic alkalic dolerite North China Craton 
Petrology and Structural Characterization of Post-Neoproterozoic Dolerites from the Kimberlite Fields in the Kéniéba Region (Western Mali)
《Open Journal of Geology》2024年第6期655-670,共16页Gbele Ouattara Baco Traore Ziandjêdé Hervé Siagné Aboubacar Denon Souleymane Sangare Marc Ephrem Allialy 
Post-Neoproterozoic dolerites from the Kéniéba region (Western Mali) are often associated with kimberlites. The rarity of kimberlite outcrops led to the study of doleritic rocks, spatially associated with them. The ...
关键词：DOLERITES Kimberlitic Fields PETROLOGY Structures Kéniéba MALI 
Fractional Crystallization and Crustal Contamination of Doleritic and Trachytic Dykes Crosscutting the Cretaceous Sedimentary Basins from Figuil (North Cameroon) and Léré(South-Western Chad): Geodynamic Implications
《Journal of Geoscience and Environment Protection》2021年第12期190-210,共21页Moussa Ngarena Klamadji Merlin Gountié Dedzo Rigobert Tchameni Djamilatou Diddi Hamadjoda Pierre Christel Biakan à Nyotok Gervais Onana 
Magmatism in the Cretaceous sedimentary basins of the Figuil and Léré regions constitutes one of the fundamental parameters in the reconstruction of the history of the Cretaceous sedimentary basins. The main objecti...
关键词：DOLERITES TRACHYTE Sedimentary Basins Continental Tholeiites Figuil and Léré 
Petrology and geochemical framework of dolerites dykes of Temte, North Cameroon, Central Africa
《Acta Geochimica》2021年第3期287-299,共13页M.Mey Atour J.M.Bardintzeff A.Fagny Mefire O.F.Nkouandou R.Tchameni A.Dinamou 
"Agence Universitaire de la Francophonie (AUF)" through the BAGL (Bureau Afrique Centrale et des Grands Lacs) for financial support of Le Projet de soutien aux équipes de recherche 2012/2013 (No 51110SU201) for supplement analyses;"Laboratoire GEOPS" of the University Paris-Saclay is thanked for financial support of thin sections and electron microprobe analyses。
The Temtebasement in North Cameroon is crosscut by dyke swarms with N 20°–40°trending,including dykes 15–30 m wide,up to 3 km-long.Representative rocks exhibit intersertal to sub-ophitic textures.Electron micropro...
关键词：DOLERITE DYKE Temte Poli Cameroon Central Pan-African Fold Belt 
Petrography and Geochemical Characterization of Dolerites from Figuil (Northern Cameroon) and Léré(Southwestern Chad)被引量：2
《International Journal of Geosciences》2020年第7期459-482,共24页Moussa Ngarena Klamadji Merlin Gountié Dedzo Rigobert Tchameni Daouda Dawaï 
This work presents the petrographic and geochemical data of the dolerite dykes crosscutting the Pan-African basement of Figuil (North-Cameroon) and Léré (South-West Chad) in order to approach their petr...
关键词：Doleritic Dykes Pan-African Basement Continental Tholeiites North-Cameroon South-West of Chad 
The Boninite-like Dolerites in the Xigaze Ophiolites, Tibet: Similar to the MORB-like Dolerites
《Acta Geologica Sinica(English Edition)》2020年第S01期73-75,共3页YANG Shengbiao YANG Jingsui LI Yuan LI Ruibao 
co-supported by the National Key Research and Development Project of China(No.2016YFC0600310);funded by the China Geological Survey(CGS;No.DD20160023);the Natural Science Foundation of China(41802055);the project from the China Postdoctoral Science Foundation(2018M632942)
The Early Cretaceous Xigaze ophiolites(XO)exposed along the central segment of the more than 2000 km long Yarlung Zangbo Suture Zone in southern Tibet,preserved the structure of the upper mantle and oceanic crust,is i...
关键词：Yarlung Zangbo suture zone Xigaze ophiolite depleted mantle mid-ocean ridge 
Mantle plume:the dynamic setting of the origin of Early Paleozoic mafic dykes in Ziyang,Shaanxi Province,Southern Qinling Block,China
《Acta Geochimica》2020年第3期307-325,共19页Xiaoqing Chen Shen Liu Caixia Feng Ian M.Coulson Yan Fan Kairui Tai Tianjing Gao Siyuan Zhang 
This study was supported by the National Natural Science Foundation of China(Grant:41573022).
The mafic dykes(dolerites)during the Early Paleozoic are widely spread in Langao-Ziyang,southern Qiling Block,and the investigation on these dykes are very important.Previous studies have mainly focused on the Siluria...
关键词：Early Paleozoic DOLERITES GEOCHEMISTRY ORIGIN Mantle plume 
Petrochemical Characterization of Two Distinct Types of Dolerites from Bafoussam Area, West Cameroon被引量：2
《International Journal of Geosciences》2013年第8期1131-1144,共14页Gus Djibril Kouankap Nono Pierre Wotchoko Sylvestre Ganno Divine Ngong Njinchuki Jean Paul Nzenti 
Two petrochemical types of doleritic dykes have been distinguished in Bafoussam area: 1) the olivine-bearing dolerites which are the most representative are dark green, showing characteristics of alkaline basalts and,...
关键词：Doleritic DYKE PETROCHEMICAL Alkaline THOLEIITIC Intraplaque Bafoussam 
Petrological and ^(40)Ar/^(39)Ar Constraints for the Precambriam Dolerites in Roraima,Brazil
《地学前缘》2009年第S1期207-208,共2页G.Perlingeiro U.G.Cordani Paulo M.Vasconcelos D.Thiede 
This article examined the use of the 40Ar/39Ar incremental heating and K/Ar analyses to date dolerites located in the extreme north region in Brazil. The material used for dating was whole rock a...
关键词：40Ar/39Ar geochronology DOLERITE PRECAMBRIAN Roraima Guiana Shield M’udku METAMORPHISM 
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