
Xuanlong type calcite deposit

A Geochronological Study of the Xuanlong Type
The Xuanlong type deposits occurred mostly in the Xuanhua area from the north TransNorth China Oregon They are hosted in shallow marine clastic and carbonate2014年3月1日 The most important sedimentary hematite deposits in China include the “Xuanlong” type and the “Ningxiang” type The “Xuanlong” type of iron deposits with a total of Spatiotemporal distribution and tectonic settings of the 2014年12月1日 Semantic Scholar extracted view of "A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits in North China Craton: Evidence From U‐Pb Ages of Detrital A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits 2 天之前 The Xuanlongtype ironstone is a late Paleoproterozoic (∼164 Ga) hematitedominated granular iron formation (GIF) in the North China Craton (NCC) However, recent geochemical Paleomagnetic constraints on the primary iron minerals of

华北克拉通宣龙式铁矿锆石UPb年龄及其对矿床成因的制约
Abstract: Xuanlongtype iron deposit is the most important sedimentarytype iron ores in North China,which was deposited during the MidProterozoic era (1800~800 Ma) Here we report the 2014年12月1日 We designate this class of deposits as Proterozoic iron oxide (Cu U Au REE) deposits, and propose that the ore deposits generally referred to as ‘Kirunatype’ should be A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits 2012年9月19日 结果显示:主量元素的化学成分中Fe 2 O 3T 的含量最高, 并且具有较高的Al 2 O 3 、TiO 2 和P 2 O 5 含量;微量元素含量总体与平均地壳相似, 并显示氧化还原敏感元素V、U、Mo的相对富集;稀土总量高、轻稀土元素亏 河北省宣龙式铁矿的地球化学特征及其地质意义2014年12月29日 A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits in North China Craton: Evidence From UPb Ages of Detrital Zircons From the Chuanlinggou A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits

河北省宣龙式铁矿的地球化学特征及其地质意义
2012年9月19日 结果显示:主量元素的化学成分中Fe 2 O 3T 的含量最高, 并且具有较高的Al 2 O 3 、TiO 2 和P 2 O 5 含量;微量元素含量总体与平均地壳相似, 并显示氧化还原敏感元素V、U、Mo的相对富集;稀土总量高、轻稀土元素亏 2012年9月1日 The results of major, trace, rare earth elements, Fe and Nd isotopic compositions of Xuanlong type iron ore deposit are reported The average bulk compositions of iron ore are Geochemical features of Xuanlong type iron ore deposit in The results of major,trace,rare earth elements,Fe and Nd isotopic compositions of Xuanlong type iron ore deposit are reportedThe average bulk compositions of iron ore are characterized by highest total Fe2O3,and relative enrichment in Al2O3,TiO2 and P2O5The overall contents of trace elements are similar to those of the average crust,but with distinct enrichments of redox Geochemical features of Xuanlong type iron ore deposit in 2021年8月14日 The results of major,trace,rare earth elements,Fe and Nd isotopic compositions of Xuanlong type iron ore deposit are reportedThe average bulk This paper will report Raman analytical results of twentythree inclusions in garnets,pyroxenes and dolomite or calcite from 9 deposits including HanXing iron deposits,Mengku iron deposit andGeochemical and Feisotope characteristics of the largest

Fossil bacteria in Xuanlong iron ore deposits of Hebei Province
2004年4月1日 Discovered in Early Proterozoic Xuanlong iron ore deposits are six genera of fossil iron bacteria, i e sphere (coenobium of) rodshaped (monomer) Naumanniella, ellipsoid elliptical Ochrobium, sphere spherical Siderocapsa and chain spherical Siderococcus, chain rodshaped Leptothrix and Lieskeella, and six genera of fossil blue bacteria, namely sphere 2 天之前 The late Paleoproterozoic Xuanlongtype ironstone in the northern margin of the North China Craton (NCC) is regarded as a typical GIF (Bekker et al, 2010)The Xuanlongtype ironstone is a hematitedominated GIF with a typical bulk rock TFe 2 O 3 content of more than ∼60 wt% on average and sometimes up to ∼80 wt% (Li and Zhu, 2012; Tang et al, 2015; Lin Paleomagnetic constraints on the primary iron minerals of The Xuanlongtype ironstone is a hematitedominated GIF with a typical bulk rock TFe 2 O 3 content of more than ∼60 wt% on average and sometimes up to ∼80 wt% (Li and Zhu, 2012; Tang et al, 2015; Lin et al, 2019) Moreover, the Xuanlongtype ironstone occurred in the time interval of the evolution from unicellular eukaryotes to Paleomagnetic constraints on the primary iron minerals of 2012年9月19日 Geochemical features of Xuanlong type iron ore deposit in Hebei Province and their geological significances Acta Petrologica Sinica, 28(9): 29032911(in Chinese with English abstract) 河北省宣龙式铁矿的地球化学特征及其地质意义 李志红, 朱祥坤 河北省宣龙式铁矿的地球化学特征及其地质意义

A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits
Request PDF On Dec 1, 2014, Chao Duan and others published A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits in North China Craton: Evidence From UPb Ages of Detrital 2020年7月14日 The Datangpo‐type manganese ore deposits, which formed during the Nanhuan (Cryogenian) period and are located in northeastern Guizhou and adjacent areas, are one of the most important manganese (PDF) Mineralization Mechanism of Gucheng manganese ore deposit 2017年8月27日 The Xuanlong iron ore deposit is a large sedimentary iron deposit well known both at home and abroad It is characterized by special ore types and fabrics In recent years it is considered that hematite in the Xuanlong iron ores was directly precipitated by microbial algae and bacteria (Zhu Shixing, 1980; Du Rulin et al, 1992; Liu Minet al The role of organic matter in the formation of siderite 2019年10月1日 Carlintype gold deposits (CTGDs), which are also called sedimenthosted disseminated gold deposits, contain some of the largest gold resources in the world (Cline et al, 2005, Kesler et al, 2005, Muntean et al, 2011, Large et al, 2011)China is the second largest producer of gold from CTGDs after the United States, with a dozen of CTGDs in two triangle Trace elements and CO isotopes of calcite from Carlintype

Geochemical features of Xuanlong type iron ore deposit in
Geochemical features of Xuanlong type iron ore deposit in Hebei Province and their geological significances河北省宣龙式铁矿的地球化学特征及其地质意义 来自 掌桥科研 喜欢 0 阅读量: 83 作者: 李志红,朱祥坤 展开 摘要: 本文报道了宣龙式 2022年4月12日 Xuanlong ironstones occur as stromatolitic or ooidal, hematiterich, concordant bodies in the Paleoproterozoic Chuanlinggou Formation of North China(PDF) Shallowwater hydrothermal venting and the 2014年12月29日 A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits in North China Craton: Evidence From UPb Ages of Detrital Zircons From the Chuanlinggou Formation The 14 th Quadrennial International Association on the Genesis of Ore Deposits Symposium August 19–22, 2014, Kunming, China December 2014 Pages 966967 A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits 2023年8月10日 Fossil bacteria in Xuanlong iron ore deposits of Hebei Province 349 Table 2 Hematitic fossil bacteria in Xuanlong iron ore/Pm Monomer Coenobium Type Genus or species morphol size sheath morphol size sheath Sample I N neustonica straigrod (2ü35)×(35ü75) 05ü1 sphere 15ü25 thin Ls116Fossil bacteria in Xuanlong iron ore deposits of Hebei

Calcite : Properties, Formation, Occurrence and Uses Areas
2023年8月25日 3 Mineral Deposits: Calcite can be associated with various types of mineral deposits In hydrothermal veins, where hot fluids circulate through fractures in rocks, calcite can precipitate along with other minerals Calcite can also be present in ore deposits, especially those related to metallic ores like lead, zinc, and copper Its presence 2012年1月1日 The results of major, trace, rare earth elements, Fe and Nd isotopic compositions of Xuanlong type iron ore deposit are reported The average bulk compositions of iron ore are characterized by Geochemistry and tectonic significance of the iron ore of 2019年9月1日 Orogenic gold deposits are structurally controlled and typically hosted by second and thirdorder structures where they form quartz dominated hydrothermal vein systems that carry native gold, sulfides (pyrite, pyrrhotite, arsenopyrite and chalcopyrite), carbonates (calcite, ankerite and siderite), tourmalines and tellurides as minor mineral phases (eg Groves et al, Textural evolution and trace element chemistry of 2024年8月23日 Calcite SmNd isochron age of the Shuiyindong Carlintype gold deposit, Guizhou, China Wenchao Sua,b,⁎, Ruizhong Hub, Bin Xiaa, Yong Xiab, Yuping Liub a Key Laboratory of Marginal Sea Geology Calcite SmNd isochron age of the Shuiyindong Carlin

Identification, Characterization, and Deposit Model of Calcite
2024年6月6日 The Middle Atlas hosts calcite veins of considerable economic value, being found in the Mahdi and Bou Naceur ridges in the eastern part of the Moroccan Middle Atlas In this study, we aim to identify the fundamental factors controlling mineralization, which could be essential for the exploration of calcite minerals Jurassic dolomites and limestones host calcite 2019年4月12日 Interestingly, the unique MREEenriched pattern with a positive Eu anomaly is also observed in orestage hydrothermal Cabearing minerals (eg, calcite) in other Carlintype Au deposits in the Two Hydrothermal Events at the Shuiyindong CarlinType Gold Deposit 2024年1月11日 Even though its name makes it sound like it comes from Iceland, there aren’t many large deposits there anymore This type of calcite is not as common around the world as its opaque counterparts, but Mexico and Where And How We Find And Identify Calcite In 2015年5月1日 The iron deposits in China are divided into six types: sedimentary–metamorphic, magmatic Fe–Ti–(V), volcanic rockhosted, contact metasomatic–hydrothermal (mostly skarn), sedimentary, and Types and geological characteristics of iron

(PDF) Genesis of the Wutuogou AgPbZn deposit in the
2024年1月9日 The Wutuogou AgPbZn deposit, a newly discovered veintype deposit, is located in the Eastern Kunlun Orogenic Belt (EKOB), northwestern China2021年9月1日 Similarly, the sericite or illite in Carlintype gold deposits is commonly too finegrained to be mechanically separated from the inheritances of preore mineral (Hofstra et al, 1999;Arehart et Calcite UPb dating unravels the age and hydrothermal 2015年5月1日 China is characterized by the world’s largest demand for iron ores and more than 50% of this demand is met by foreign sources (131 billion tons iron ores with the grade in the range 20–30% TFe from domestic and 074 billion tons iron ores with the grade >50% TFe from abroad in 2012) Li et al (2012a) classified iron deposits of China into six typesTypes and geological characteristics of iron deposits in China2014年12月29日 A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits in North China Craton: Evidence From UPb Ages of Detrital Zircons From the Chuanlinggou Formation The 14 th Quadrennial International Association on the Genesis of Ore Deposits Symposium August 19–22, 2014, Kunming, China December 2014 Pages 966967 Related A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits

UPb VEIN CALCITE DATING REVEALS THE AGE OF CARLINTYPE GOLD DEPOSITS
2022年2月7日 There are two stages of calcite in the deposit: synore calcite (CalI) and postore/barren calcite (CalII) CalI is mainly euhedralsubhedral and finegrained, has homogeneous grey luminescence It is a veintype gold deposit with calcite as the main gold host, which differs from the quartz veindominant gold deposits, and thus its genetic process is still controversial The Phapon gold deposit is situated in the northern part of the Luang Prabang (Laos)–Loei (Thailand) metallogenetic belt, which is located along the northwestern Late Triassic orogenic gold mineralization along the 2014年3月1日 The Dunde iron–zinc deposit (185 Mt at 35% Fe), located in the Tianshan orogenic belt, Xinjiang, northwest China, is hosted in late Carboniferous volcanic–volcaniclastic rocks characterized by prograde skarn formation and retrograde alteration, but the ore lacks any clear spatial link with intrusive rocks Four stages of skarn formation and ore development can Geology, geochemistry, and geochronology of the Dunde The results of major,trace,rare earth elements,Fe and Nd isotopic compositions of Xuanlong type iron ore deposit are reportedThe average bulk compositions of iron ore are characterized by highest total Fe2O3,and relative enrichment in Al2O3,TiO2 and P2O5The overall contents of trace elements are similar to those of the average crust,but with distinct enrichments of redox Geochemical features of Xuanlong type iron ore deposit in

Geochemical and Feisotope characteristics of the largest
2021年8月14日 The results of major,trace,rare earth elements,Fe and Nd isotopic compositions of Xuanlong type iron ore deposit are reportedThe average bulk This paper will report Raman analytical results of twentythree inclusions in garnets,pyroxenes and dolomite or calcite from 9 deposits including HanXing iron deposits,Mengku iron deposit and2004年4月1日 Discovered in Early Proterozoic Xuanlong iron ore deposits are six genera of fossil iron bacteria, i e sphere (coenobium of) rodshaped (monomer) Naumanniella, ellipsoid elliptical Ochrobium, sphere spherical Siderocapsa and chain spherical Siderococcus, chain rodshaped Leptothrix and Lieskeella, and six genera of fossil blue bacteria, namely sphere Fossil bacteria in Xuanlong iron ore deposits of Hebei Province2 天之前 The late Paleoproterozoic Xuanlongtype ironstone in the northern margin of the North China Craton (NCC) is regarded as a typical GIF (Bekker et al, 2010)The Xuanlongtype ironstone is a hematitedominated GIF with a typical bulk rock TFe 2 O 3 content of more than ∼60 wt% on average and sometimes up to ∼80 wt% (Li and Zhu, 2012; Tang et al, 2015; Lin Paleomagnetic constraints on the primary iron minerals of The Xuanlongtype ironstone is a hematitedominated GIF with a typical bulk rock TFe 2 O 3 content of more than ∼60 wt% on average and sometimes up to ∼80 wt% (Li and Zhu, 2012; Tang et al, 2015; Lin et al, 2019) Moreover, the Xuanlongtype ironstone occurred in the time interval of the evolution from unicellular eukaryotes to Paleomagnetic constraints on the primary iron minerals of

河北省宣龙式铁矿的地球化学特征及其地质意义
2012年9月19日 Geochemical features of Xuanlong type iron ore deposit in Hebei Province and their geological significances Acta Petrologica Sinica, 28(9): 29032911(in Chinese with English abstract) 河北省宣龙式铁矿的地球化学特征及其地质意义 李志红, 朱祥坤 Request PDF On Dec 1, 2014, Chao Duan and others published A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits in North China Craton: Evidence From UPb Ages of Detrital A Geochronological Study of the Xuanlong Type Sedimentary Iron Deposits 2020年7月14日 The Datangpo‐type manganese ore deposits, which formed during the Nanhuan (Cryogenian) period and are located in northeastern Guizhou and adjacent areas, are one of the most important manganese (PDF) Mineralization Mechanism of Gucheng manganese ore deposit 2017年8月27日 The Xuanlong iron ore deposit is a large sedimentary iron deposit well known both at home and abroad It is characterized by special ore types and fabrics In recent years it is considered that hematite in the Xuanlong iron ores was directly precipitated by microbial algae and bacteria (Zhu Shixing, 1980; Du Rulin et al, 1992; Liu Minet al The role of organic matter in the formation of siderite

Trace elements and CO isotopes of calcite from Carlintype
2019年10月1日 Carlintype gold deposits (CTGDs), which are also called sedimenthosted disseminated gold deposits, contain some of the largest gold resources in the world (Cline et al, 2005, Kesler et al, 2005, Muntean et al, 2011, Large et al, 2011)China is the second largest producer of gold from CTGDs after the United States, with a dozen of CTGDs in two triangle