{"title":"S and Pb Isotope Geochemistry of the carbonate-hosted Au-Ag-Zn ± Pb deposits in the Maden Village (Ulukışla-Niğde), Central Taurides, South Turkey","authors":"Asuman Kahya, E. Kuşcu, O. Cengiz, M. Yıldız","doi":"10.1127/NJMA/2019/0166","DOIUrl":"https://doi.org/10.1127/NJMA/2019/0166","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47398602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mineralogy and geochemistry of the Dehshir listvenites, central Iran","authors":"M. Ahankoub, M. Mackizadeh","doi":"10.1127/NJMA/2019/0091","DOIUrl":"https://doi.org/10.1127/NJMA/2019/0091","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NJMA/2019/0091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41940341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Yeganehfar, R. Deevsalar, Vahid Ahadnejad, R. Shinjo, I. Neill
Biotite is the most frequent ferromagnesian phase in granitoids from the Malayer-Boroujerd Plutonic complex (MBPC), Zagros Orogen. The abundance of biotite decreases from granitoids towards dioritic intrusions, dioritic and gabbroic dykes to gabbroic intrusions coincident with increase in hornblende/biotite ratio. Primary magmatic biotite composition in the MBPC granitoids (Fe-rich type) changes from annite to siderophyllite, while Fe-depleted secondary biotites from the altered gabbros and gabbroic-dioritic dykes approximate to the phlogopite-eastonite series, and those from least-altered gabbros display average composition of these groups, however, extend towards high-Al end-members. Using Ti-in-biotite geothermometer, the crystallization temperature varies between 550 °C to 750 °C in MBPC granitoids (P 10–15 bars). Mode-III: biotite crystallized at higher oxidizing conditions (f(O2) > 10–10 bars) in gabbroic and dioritic dykes as well as gabbroic intrusions. The progressive decreases in f (O 2)–values and oxidizing conditions from I-type to S-type granites (above HM-to below QFM-buffer) reflect increasing incorporation of less-oxidized upper crustal materials during magmagenesis. In addition, the highest f (O2) in MBPC mafic intrusive rocks is consistent with a modest crustal contamination, if any. There is lack of evidence for porphyry type alteration zoning and subvolcanic porphyritic intrusions associated with porphyry copper system. The small patches of calc-silicate rocks from the NW-MBPC formed in contact with less oxidized and highly fractionated, crustal-derived granular granitoids and are less predisposed to develop Cu-Au mineraliza- tion. However, given the relatively higher f (O2)-values, the Middle Jurassic mafic intrusive rocks originated from the meta- somatised mantle-wedge beneath SaSiZ, appears to be the best candidate for further ore exploration programs in the area.
{"title":"Biotite compositional variations – A physicochemical approach to investigate crustal involvement and ore potential in Middle Jurassic plutonic rocks from the Malayer-Boroujerd Plutonic complex, W Iran","authors":"H. Yeganehfar, R. Deevsalar, Vahid Ahadnejad, R. Shinjo, I. Neill","doi":"10.1127/NJMA/2019/0131","DOIUrl":"https://doi.org/10.1127/NJMA/2019/0131","url":null,"abstract":"Biotite is the most frequent ferromagnesian phase in granitoids from the Malayer-Boroujerd Plutonic complex (MBPC), Zagros Orogen. The abundance of biotite decreases from granitoids towards dioritic intrusions, dioritic and gabbroic dykes to gabbroic intrusions coincident with increase in hornblende/biotite ratio. Primary magmatic biotite composition in the MBPC granitoids (Fe-rich type) changes from annite to siderophyllite, while Fe-depleted secondary biotites from the altered gabbros and gabbroic-dioritic dykes approximate to the phlogopite-eastonite series, and those from least-altered gabbros display average composition of these groups, however, extend towards high-Al end-members. Using Ti-in-biotite geothermometer, the crystallization temperature varies between 550 °C to 750 °C in MBPC granitoids (P 10–15 bars). Mode-III: biotite crystallized at higher oxidizing conditions (f(O2) > 10–10 bars) in gabbroic and dioritic dykes as well as gabbroic intrusions. The progressive decreases in f (O 2)–values and oxidizing conditions from I-type to S-type granites (above HM-to below QFM-buffer) reflect increasing incorporation of less-oxidized upper crustal materials during magmagenesis. In addition, the highest f (O2) in MBPC mafic intrusive rocks is consistent with a modest crustal contamination, if any. There is lack of evidence for porphyry type alteration zoning and subvolcanic porphyritic intrusions associated with porphyry copper system. The small patches of calc-silicate rocks from the NW-MBPC formed in contact with less oxidized and highly fractionated, crustal-derived granular granitoids and are less predisposed to develop Cu-Au mineraliza- tion. However, given the relatively higher f (O2)-values, the Middle Jurassic mafic intrusive rocks originated from the meta- somatised mantle-wedge beneath SaSiZ, appears to be the best candidate for further ore exploration programs in the area.","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NJMA/2019/0131","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41560246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jingyao Xu, J. Melgarejo, M. Castillo-Oliver, L. Arqués, J. Santamaria
{"title":"Ilmenite generations in kimberlite from Banankoro, Guinea Conakry","authors":"Jingyao Xu, J. Melgarejo, M. Castillo-Oliver, L. Arqués, J. Santamaria","doi":"10.1127/NJMA/2018/0096","DOIUrl":"https://doi.org/10.1127/NJMA/2018/0096","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NJMA/2018/0096","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45448283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Chukanov, S. Weiss, N. Meisser, I. Pekov, S. Britvin, S. A. Vozchikova, D. I. Belakovskiy, V. Ermolaeva
{"title":"Post-mining amorphous Cu-Al hydroxyphosphate from West Caradon Mine, Liskeard, UK","authors":"N. Chukanov, S. Weiss, N. Meisser, I. Pekov, S. Britvin, S. A. Vozchikova, D. I. Belakovskiy, V. Ermolaeva","doi":"10.1127/NJMA/2018/0105","DOIUrl":"https://doi.org/10.1127/NJMA/2018/0105","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41532883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anomalies in the depth of the asthenospheric mantle: key to the enigma of adakites in the Urumieh-Dokhtar magmatic arc","authors":"M. Sayari, M. Sharifi","doi":"10.1127/NJMA/2018/0093","DOIUrl":"https://doi.org/10.1127/NJMA/2018/0093","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NJMA/2018/0093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41508582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. N. Tehrani, A. A. Calagari, F. Velasco, I. Yusta
{"title":"Geochemistry, texture, and mineralogy of the supergene iron oxide deposits from the Binaloud zone, NE Iran","authors":"P. N. Tehrani, A. A. Calagari, F. Velasco, I. Yusta","doi":"10.1127/njma//2018/0064","DOIUrl":"https://doi.org/10.1127/njma//2018/0064","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49462758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"REE geochemical characteristics and fluid inclusion studies of the Bagher-Abad fluorite deposit, Central Iran","authors":"M. Azizi, S. Alipour, A. Abedini, H. Bagheri","doi":"10.1127/NJMA/2018/0124","DOIUrl":"https://doi.org/10.1127/NJMA/2018/0124","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47842743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Uranium-rich pyrochlores from the Ilímaussaq complex, South Greenland","authors":"S. Karup-moller","doi":"10.1127/njma/2018/0114","DOIUrl":"https://doi.org/10.1127/njma/2018/0114","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/njma/2018/0114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44305033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sulfides in alkaline and peralkaline rocks: textural appearance and compositional variations","authors":"Rainer J. Babiel, M. Marks, U. Neumann, G. Markl","doi":"10.1127/NJMA/2018/0095","DOIUrl":"https://doi.org/10.1127/NJMA/2018/0095","url":null,"abstract":"","PeriodicalId":51139,"journal":{"name":"Neues Jahrbuch Fur Mineralogie-Abhandlungen","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NJMA/2018/0095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48505752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：