海底烃类渗出将油和气,包括甲烷(每年约30TgCH4),排放到海洋和大气中。加利福尼亚沿岸的沉积物中蕴含着焦油,这些焦油主要是烃在海洋表面经过风化作用而形成的。海底沉积物中丰富的焦油储量表明烃渗出增加,这与冰川消融直接相关,研究提供了最直接的证据。在冰融过程中对气候敏感的天然气水合物影响热成因烃类的渗出。 Seabed Hydrocarbon Seepage Exhausts oil and gas, including methane (about 30 TgCH4 annually), into the oceans and the atmosphere. Sediments along the California coast contain tar, which is formed mainly by the weathering of hydrocarbons on the ocean surface. Rich tar reserves in seabed sediments indicate an increase in hydrocarbon excretion, which is directly related to glacial ablation, providing the most direct evidence from the study. Climate-sensitive gas hydrates affect the exudation of thermogenic hydrocarbons during ice melting.