鲁西隆起区石炭、二叠系煤成气普查可行性研究

鲁西隆起区石炭系二叠系具有巨大的生气潜力,山西组和太原组是主要气源层,部分地区在煤化过程中存在两个生气高峰期,其生气性能不比某些已知煤成气产区逊色,为普查煤成气展示了一定的前景。通过对资源量的估算,认为阳谷－荏平及曹县－成武地区远景较好,宜率先开展钻探普查。

SELENIUM RESOURCES OF CHINA: AN OUTLINE

A selenium element is usually hard to constitute any other independent than associated resources of industrial interest just because of its too low clarke value.It is not only widely used in such fields as chemical,metallurgical,building materials,electronic and medical but serves as a microelement so indispensable to as us to enjoy a good name of “an element extraordinarily efficient on life".China is rich in selenium resources which can be distinguished into different associated deposits:magmatic,porphyry,skarn,hydrothermal,sedimentary and mineral spring.Good preospects for hunting this resource should be seen in age varying carbonaceous rocks of littoral facies, skarn deposits and tectonic altered rocks.