Doan Thanh Long PhO Ban Tuyen Gide, xa Gia Tan 3 huyen Thong Nhat * Giat khuyen khich 1. Nguygn Van Toan Vien chirc UBND xa Suai cao huyen Xuan Lac + BANG D: STT Ho va ten Don vi - San pham * Giat nhAt 1. Pham Hu nh Quang I-M ...
The Wufeng–Longmaxi shale on the Yangtze Platform is an important part of the Upper Ordovician and Lower Silurian black shales. The shale is heterogeneous in chemi- cal composition and is characterized by relatively high percentages of quartz, carbonate minerals, and organic matter, as well as ...