Ore Genesis and Geochemical Characteristics of Carbonate‐Hosted Talc Deposits in Nangarhar Province, Afghanistan

Tahir Muhammad; Imai Akira; Takahashi Ryohei; Yano Shujiro

摘要

Abstract > Talc deposits in Nangarhar Province, are hosted by Paleoproterozoic carbonate rocks, metamorphosed to amphibolite facies in the east–west (E–W) trending Spinghar Fault Block. Many deposits in this province have potential economic importance. However, detailed geologic and petrological studies on ore genesis are still lacking. In this study, eight talc deposits and two prospects of the Spinghar Fault Block were investigated. Talc is mainly formed by alteration of the host dolomite marble, magnesite rocks, and tremolitite. Talc ore bodies occur parallel to subparallel to the beddings of the host carbonate rocks. Dolerite occur as dikes and sills and are mostly metamorphosed to amphibolite. Although the amphibolite occurs mostly parallel to subparallel to the beddings of the host carbonate rocks, and talc orebodies, it partly crosscuts the host rocks. Massive layers of tremolitite were observed with most of the talc ore bodies. Quartz veins occur along the gneissosity of gneiss all over the study area. SiO <sub>2</sub> and MgO content in talc rocks from all deposits ranged from 49.1 to 65.1?wt% and from 26.1 to 32.9?wt%, respectively. CaO content in talc rocks and magnesite rocks are less than 1?wt%. ?REE content in talc rocks ranged from 0.1 to 8.9?ppm. Chemical compositions of host carbonate rocks are close to the ideal composition. Concentrations of Al, Ta, Hf, Zr, Th, Cr, Ni, Co, and ?REE in talc ores and host carbonate rocks were very low and inconsistent with mafic and ultramafic rocks protolith. Therefore, the metamorphosed sedimentary carbonate rocks were likely to be the protolith of the talc ores. The occurrence of parallel to subparallel quartz veins to the gneissosity of gneiss, as well as the presence of hydrous minerals in host carbonate rocks, suggested that hydrothermal fluids were most probably supplied through the gneiss. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <标题类型=“main”>抽象</ title> > 南巴尔省的滑石矿床，由古普罗佐碳酸岩岩石托管，在东方（E-W）趋势Spinghar故障块中变成了倒置的倒置面。该省的许多存款具有潜在的经济意义。然而，仍然缺乏关于矿石创世纪的详细地质和岩石学研究。在这项研究中，研究了八个滑石矿床和Spinghar故障块的两个前景。滑石主要由宿主白云岩大理石，菱镁岩岩和颤音改变形成。滑石矿体与宿主碳酸盐岩石的床上同步平行。 Dolerite作为堤防和窗台出现，并且大多是变质到Amphibolite。虽然倒置的倒车态主要是平行于宿主碳酸盐岩石的床上的平行，但它部分地横切地摇滚了主体岩石。大多数滑石矿体都观察到大部分滑石矿体的透射岩。石英静脉沿着整个学习区沿着环味的神经胶囊发生。 SiO. <sub> 2 </ sub> 所有沉积物的滑石岩中的MgO含量范围为49.1至65.1〜wt％，分别为26.1至32.9？wt％。滑石岩石和菱镁岩岩石中的CAO含量小于1？WT％。？滑石岩中的REE含量为0.1至8.9？ppm。宿主碳酸盐岩的化学组成接近理想的组合物。 Al，Ta，Hf，Zr，Th，Cr，Ni，Co和α的浓度和锆岩石中的Ree非常低，与Mafic和Ultramfic Rocks促果实不一致。因此，变质沉积碳酸酯岩石可能是滑石矿石的原料。平行于双糖静脉和卤代岩中的含水矿物质的平行的发生，以及冬季碳酸盐岩石中的存在，表明水热流体最多可以通过球茎供应。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-26853/'>《Resource Geology》</a> <b style="margin: 0 2px;">|</b><span>2018年第4期</span><b style="margin: 0 2px;">|</b><span>共21页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tahir Muhammad&option=202" target="_blank" rel="nofollow">Tahir Muhammad;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Imai Akira&option=202" target="_blank" rel="nofollow">Imai Akira;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Takahashi Ryohei&option=202" target="_blank" rel="nofollow">Takahashi Ryohei;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yano Shujiro&option=202" target="_blank" rel="nofollow">Yano Shujiro;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Graduate School of Engineering and Resource ScienceAkita UniversityAkita Japan;</p> <p>Department of Earth Resources EngineeringKyushu UniversityFukuoka Japan;</p> <p>Graduate School of International Resource SciencesAkita UniversityAkita Japan;</p> <p>Shokozan Mining Co. LtdTokyo Japan;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/165.html" title="地质学">地质学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=dolomite marble&option=203" rel="nofollow">dolomite marble;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=magnesite&option=203" rel="nofollow">magnesite;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Nangarhar&option=203" rel="nofollow">Nangarhar;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Spinghar Fault Block&option=203" rel="nofollow">Spinghar Fault Block;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=talc&option=203" rel="nofollow">talc;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=tremolite&option=203" rel="nofollow">tremolite;</a> </p> <div class="translation"> 机译：白云岩大理石;菱镁矿;南巴尔;Spinghar故障块;滑石;透红石; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=金松&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,金松</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王春连&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,王春连</a> <span> <a href="/journal-cn-5038/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 岩石矿物学杂志 </a> </span> <span> . 2021</span><span>,第005期</span> </span> </div> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-journal-cn_acta-petrologica-sinica_thesis/0201252023117.html">云南金平铜厂斑岩Cu( Mo-Au)矿床含矿石英正长斑岩地球化学特征及成因机制探讨</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=胥磊落&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 胥磊落</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=毕献武&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,毕献武</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=苏文超&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,苏文超</a> <span> <a href="/journal-cn-4795/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 岩石学报 </a> </span> <span> . 2011</span><span>,第010期</span> </span> </div> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-journal-cn_journal-shandong-university-science-technology-natural-science_thesis/0201270225618.html">沂沭断裂带中段南小尧金矿地球化学特征及矿床成因探讨</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=毛光周&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 毛光周</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=孟令强&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,孟令强</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘晓通&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,刘晓通</a> <span> <a href="/journal-cn-4704/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 山东科技大学学报（自然科学版） </a> </span> <span> . 2019</span><span>,第003期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-56390_thesis/020222518166.html">我国碳酸盐型滑石矿床成矿条件及矿床成因</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李驭亚&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 李驭亚</a> <span> <a href="/conference-cn-56390/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 地质科技重要成果学术交流会 </a> <span> <span> . 1985</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020314348074.html">四川省甘洛县赤普铅锌矿床矿石特征及成因意义研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=陈娜&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 陈娜</a> <span> . 2018</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06130471319040.html">METHOD OF GEOCHEMICAL SEARCHING FOR PHOSPHORITE DEPOSITS IN CARBONATE ORES</a> <b>[P]</b> . <span> 外国专利：  SU1247807A1 </span> <span> . 1986-07-30</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：碳酸盐矿中磷矿床的地球化学搜索方法 </span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06130414012648.html">METHOD OF UNDERGROUND LEACHING OF ORES OF DEPOSITS ON GEOCHEMICAL OXIDISING-REDUCING BARRIERS</a> <b>[P]</b> . <span> 外国专利：  RU2535867C2 </span> <span> . 2014-12-20</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：地球化学氧化还原障碍物的地下矿床浸出方法 </span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130426884878.html">METHOD Aerosol geochemical prospecting ORE DEPOSITS</a> <b>[P]</b> . <span> 外国专利：  RU2008151261A </span> <span> . 2010-06-27</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：方法气溶胶地球化学找矿矿床 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704024044027','4',7,2,1,'',this,24)" class="delivery" prompt="010401" 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