The thermal events of late hercynian movement and late yanshanian movement has great effects on the maturation of source rocks
2.
4 ) through making maps of cave section correlation in the pleokast topography of the early hercynian movement , three karstic circle are recognized in tahe oilfield , and each circle were produced one cave layer , the top cave are earlier than the down caves
3.
However , the true reason that markit slope are so steep is due to intense tectonic movement of late himalayan . as concerned as this hydrocarbon source regional evolution , the key tectonic movements for hydrocarbon accumulation can be divided into three stage : ( 1 ) middle - late caledonian movement ; ( 2 ) late - terminal hercynian movement ( 3 ) late himalayan movement
4.
3 ) on the basis of the geochemistry methods of cathodoluminescencean , strontium isotope , carbon and oxygen isotope , trace element , inclusion , etc , pleokarst mechanism have been deeply studied . pleokarst had been brought about in the meteoric water of earths surface , and mainly in the early hercynian movement
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