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南澳库龙地区陆源物很少,蒸发量大大超过降雨量,海岸沉积物为更新世生物砂组成。盐湾米尔恩湖心正在形成现代原白云石泥,呈灰白色奶酪状,晶粒0.05-0.1μm为主,有序度δ≈0,Mg~2+/Ca~2+≈1,δ~12C(PDR)=1.574‰。,δ~18O(PDB)=6.519‰。湖边坪白云岩壳为原白云石泥经过地下淡水成岩作用形成,镜下定名为含砂球粒白云岩。垂直虫孔发育,偶见小腹足类骨屑,白云石有序度δ≈0.3,晶粒0.5-1μm,比原白云石增大10倍。库龙地区间歇湖白云石可作元古代及寒武世隐晶白云岩成因借鉴。
There is very little terrigenous material in the Cuaulon area of South Australia, with evaporation exceeding the rainfall and the sediments of the coast being composed of Pleistocene biomasks. Salt Bay Milne Lake heart is forming the original dolomite mud, gray cheese shape, the grain 0.05-0.1μm, order degree δ ≈ 0, Mg ~ 2 + / Ca ~ 2 + ≈ 1, δ ~ 12C (PDR) = 1.574 ‰. , δ ~ 18O (PDB) = 6.519 ‰. The lake dolomite dolomite shell is the original dolomite mud through the formation of underground freshwater diagenesis, microscope named sand-bearing dolomite. Vertical development of wormholes, and occasionally lower gastrointestinal foot bone debris, dolomite ordered degree δ ≈ 0.3, grain 0.5-1μm, 10 times larger than the original dolomite. Intermittent lake dolomite in the Cuilong area can be used as a reference for the metamorphic and Cambrian cryptocrystalline dolomites.