relict
4.The Upper Archean Enclavement of Magnesioriebeckites-Bearing Gneiss in Liaoning Province: Old Glaucophane-Schist Relict
5.The 18O shift may indi-cate the isotopic exchange between water and rocks and the relict of co-diagenetic formation water.
6.In such shallow cover regions as forest cover areas,eolian sand interference areas and relict mountain gobi areas,debris survey may be adopted to delineate mineralization sectors;
7.however, the latter is a centre of relict, it is because of existing a great of relics primitive plant groups and the very old geographical origin.
8.In East China Sea shelf basin, the Mesozoic relict sediments are distributed in some central-south areas, such as Fuzhou sag, Minjiang sag and Yushan lower uplift.
9.However, in the area with strong magma mingling, there are widespread abnormal fabrics, distinguished differences in the idiomophic-textures and the peritectic reaction, poililitic texture, metasomatism among the minerals, metasomatic border, embayment, rimmed structure, abnormal plagioclase zoning, relict fabric as well as the acicular apatite are very common.
10.However,based on the characteristics of these orebodies such as the form,occurrence and sulphur isotope,authors belive that the genesis of the tin ore deposits is relict body resulted from granitic superimposed ore-forming of Yanshanian epoch after basic volcano ore-forming of Indo-Chinese epoch.
