Deep-seated carbon could be transported from Earths interior into atmosphere by volcanic activities,which play an important role in geologic carbon degassing and its effects on global climate.
The solid earth degassing was enhanced by the 12 May 2008 Wenchuan MS 8.0 earthquake,resulting in large amounts of carbon-bearing gases emitted into the atmosphere.
CO2 of high concentration is found in No.2 coal seam of Yaojie coalfield in China,the highest concentration of which reaches over 95%.
Many studies reveal that global warming was resulted by the excessive release of greenhouse gas by human activities(e.g.,CO2).
The Takahe Seep,where no “seep specific” megafauna such as clams or tube worms as well as no massive carbonate chemoherm were observed,is a rather young seepage site.
Seepage of hydrocarbon-rich fluids out of the marine sedimentary column is characterized by temporal changes of flow intensity and resultant spatially variable redox conditions.
依据喀木斯特地区钻、测井资料，编制、分析单井沉积相图、沉积断面图、砂砾岩体等厚图、沉积相平面图，认为研究区侏罗系下统八道湾组沉积环境为辫状河三角洲-湖泊-曲流河三角洲沉积；三工河组沉积环境为辫状河-滨浅湖沉积；中统西山窑组沉积环境为辫状河三角洲相；中上统石树沟群沉积环境为辫状河-曲流河沉积。
沉积、沉降与堆积中心三者在成因、时空耦合上存在一定的关联及差异。该研究基于沉积、沉降与堆积中心的“三中心”时空耦合关系，对比分析珠江口盆地惠东地区古近系文昌组、恩平组“三中心”时空耦合关系的差异，提出文昌组“三中心”统一和恩平组“三中心”分离的新认识，明确了恩平组烃源岩分布规律，为研究区古近系提供新的油气勘探思路。
台湾是非常年轻的造山带,是近500Ma 年来由欧亚板块、冲绳板块和菲律宾板块挤压而不断隆升的岛屿.构造活动非常活动,地震时常发生,处在东亚季风带,同时又受到台风强烈影响等,使得台湾成全球产沙量最高的区域.境内河流源短、坡降大,受台风强降雨影响显著,常形成泥石流和高悬沙浓度的洪水,塑造了特色的山地型河流沉积地貌.
鄂尔多斯盆地位于中国东部稳定区和西部活动带之间的结合部位，兼受特提斯、古亚洲洋和环太平洋构造域的影响，是在大华北克拉通盆地内部逐渐发育起来的残余克拉通盆地。盆地内三叠系油气资源丰富，对于该层段的研究主要集中在上三叠统延长组，而对下伏中三叠统纸坊组的研究相对较少。