Accessory Minerals in Felsic Igneous Rocks - Part 7: Composition of monazite-(Ce) and zircon from evolved post-collisional microgranites/rhyolites in the Western Erzgebirge−Vogtland metallogenic province (Germany)

Part seven of a series of data sets dealing with the composition of accessory minerals from felsic igneous rocks reports chemical data for monazite-(Ce) and zircon from eight occurrences of high-Si felsic microgranites/rhyolites in the Erzgebirge−Vogtland metallogenic province of Germany, which possibly emplaced between 305 and 295 Ma. The subvolcanic rocks are discriminated into three groups according to whole-rock geochemistry. Mineral data are acquired between about 1995 and 2005 on surface rocks and borehole samples. The data set contains the complete pile of electron-microprobe analyses for monazite-(Ce) (MONA-VOLC-2020) and zircon (ZIRC-VOLC-2020). All tables are presented as Excel (xlsx) and machine-readable csv formats. The content of the tables and further information on the granites and regional geology are provided in the data description file. Information on xenotime-(Y), which is commonly rare and did not precipitate in all rhyolites, and rhabdophane-(Ce), which was observed only ones as alteration product of monazite-(Ce), is provided elsewhere (cf. data description file).

本数据集为一套研究长英质火成岩副矿物组成的系列数据集之第七部分，报道了德国厄尔士山脉−福格特兰成矿带（Erzgebirge−Vogtland metallogenic province）8处高硅长英质微花岗岩/流纹岩产出地的独居石-(Ce)（monazite-(Ce)）与锆石（zircon）的化学数据，这些岩石的侵位时代可能介于305 Ma至295 Ma之间。依据全岩地球化学特征，该套次火山岩可被划分为3个群组。矿物化学数据采集于1995年至2005年左右，样品取自地表露头与钻孔岩芯。本数据集包含独居石-(Ce)（编号MONA-VOLC-2020）与锆石（编号ZIRC-VOLC-2020）的全套电子探针分析数据。所有表格均以Excel（xlsx）及机器可读的CSV格式提供。表格内容及有关该类花岗岩与区域地质的补充信息详见数据说明文件。关于磷钇矿-(Y)（xenotime-(Y)，该矿物通常较为稀少且并非在所有流纹岩中都能形成沉淀）以及仅作为独居石-(Ce)蚀变产物被单次观测到的碳磷铈矿-(Ce)（rhabdophane-(Ce)）的相关信息，请参见其他资料（详见数据说明文件）。