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滨里海盆地北部拥有世界上最丰富的含硫天然气资源,象阿斯特拉罕,卡拉恰格纳克和奥伦堡为巨大的天然气聚集区,总共约有10×10~(12)m~3的天然气储量。阿斯特拉罕气田有5×10~(12)m~3的可采储量,其中有1.1×10~(12)m~3的 H_2S 气体(约合1.7×10~9t 的硫)。盆地处于古老东欧地台和地中海—喜马拉雅褶皱带之间的低洼地中,面积为52×10~4km~2,盆地中心沉积厚度为22km 以上,而盆地边缘带则减薄到8～15 km。在早、中古生代发育有碳酸盐岩裂谷系。这样,碳酸盐岩微型克拉通就象池边之蛙一样环绕着中间的古生代巨型裂陷槽。这些微
The northern part of the Pre-Caspian basin boasts the world’s most abundant natural gas resources, such as Astrakhan, Karachagenak and Orenburg, with a total area of about 10 × 10 ~ (12) m ~ 3 natural gas reserves. There are 5 × 10 ~ (12) m ~ 3 recoverable reserves in the Astrakhan gas field, among which there are 1.1 × 10 ~ (12) m ~ 3 H_2S gas (about 1.7 × 10 ~ 9t sulfur). The basin is located in a low-lying area between the ancient Eastern Europe platform and the Mediterranean-Himalayan fold belt with an area of 52 × 10 ~ 4km ~ 2. The basin sedimentary thickness is above 22km while the basin margin is thinned to 8 ~ 15 km. In the early, Mesozoic development of carbonate rock rift system. In this way, carbonate mini-craton passes around the middle Paleozoic giant rift trough like a frog on the pool edge. These micro