@article{oai:kanazawa-u.repo.nii.ac.jp:00057367, author = {Morishita, Tomoaki and Soda, Yusuke and 荒井, 章司 and Wakimoto, Rie and Mizuta, Toshio and Ishiyama, Daizo and Sato, Hinako and 森下, 知晃 and 曽田, 祐介 and 荒井, 章司 and 脇元, 理恵 and 水田, 敏夫 and 石山, 大三 and 佐藤, 比奈子}, issue = {11}, journal = {地質学雑誌, The Journal of the Geological Society of Japan}, month = {Nov}, note = {Black-colored rocks (Black-colored Rocks hereafter) occur as veins and a volcanic dike in the Tetori Group, southern Ishikawa Prefecture. The Black-colored Rocks are composed of angular lithic clasts in a fine-grained (<10-50 µm) matrix. The lithic clasts in veins are derived from the Tetori Group (mudstone, sandstone, and conglomerate), whereas those in the volcanic dike are derived from both the volcanic dike and the Tetori Group. The matrix of the Black-colored Rocks consists mainly of very fine-grained quartz (usually 10 µm in size) with minor amounts of feldspar, maghemite, and unidentified carbon-bearing fine-grains. The Black-colored Rocks contain abundant SiO2 relative to the host rocks. The chondrite-normalized rare earth element (REE) pattern of the Black-colored Rocks is similar to that of their host rocks, although the REE abundance is lower in the former., 金沢大学理工研究域自然システム学系}, pages = {617--623}, title = {石川県南部地域の手取層群に産する黒色珪質岩脈}, volume = {122}, year = {2016} }