岩层

The older strata gradually disintegrate.

较老岩层渐渐风化。

The sapropel-type organic matter evolution need higher temperature and biger depth and its main gas generating zone is deeper than humic-type organic matter's.

腐泥型有机质演化需要活化能，而需温度和大深度，其生气主带深于腐殖型有机质源岩层位置。

The shallow polyhalite potash deposit in Sichuan are distributed in the north plunge top of Huayingshan anticline where is anhydrock of earlier Mesozoic Triassic period.

四川浅层杂卤石钾矿分布于华蓥山背斜北倾没端下中叠统之硬石膏岩层中。

Orebodies in sedirmentary rock hosted Au deposits are discrete hypogene and epigenetic masses usually hosted in a fault zone, breccia mass, or lithologic bed or unit.

沉积岩金矿床矿体是一些不连续内生或后生地质体,通常赋存于断裂带、角砾岩体或岩层(岩性单位)中。

The sound wave come from the earth's surface echoed from the interface of the common terrane and the oilness terrane, or the inteface of aquiferous terrane and the gassness terrane.

从地表产生在普通岩层和含油岩层、含水岩层或含气岩层之间界面上反射。

This site offers images from the tropics e.g. pictures of soil profiles: aridisol in Peru, vertisol in Kenya, alfisol in Nigeria, mollisol in Thailand, spodosol in Brazil, laterite outcrops etc.

该站点提供大量热带土壤剖面图，如：秘鲁旱成土、肯尼亚变性土、尼日利亚淋溶土、泰国软土、巴西灰土、红土岩层等。