Super-large Gas Storage Found in Central Sichuan Longwangmiao Formation:a Record-breaking New Discovery

• 来源期刊: 中国油气（英文版）
• 年，卷（期）: 2020,（5）
• 页码范围: 3-5
• 页数: 3页
• 语种: 英文

摘要

Before the founding of New China, when exploring the Sichuan Basin, some geologists found a giantpaleouplift with a height of about 2000-3000 meters in the long strip irregular region underground starting from Suining (Longnvsi) in the east, connecting Ya'an in the west, reaching Zizhong (Leshan) in the south and Mianyang in the north and named it Leshan-Longnvsi Paleouplift. Geologists believe that Leshan-Longnvsi Paleouplift is the oldest uplift in the Sichuan basin, formed about 300million years ago in the crustal movement.300 million years ago, when the Sichuan basin was still a vast ocean, the central Sichuan region gradually uplifted with the crustal movement, and the stratum gradually deposited and became thicker with many marine organisms deposited in it, gradually forming a "marine stratum".After more than 100 million years of weathering and denudation, this uplift was again covered by the ocean until the Sichuan Basin completely turned into land around 100 million years ago.