Amino acids in the interstitial waters from ODP Hole 113-695A@en

Site 695 lies on the southeast margin of the South Orkney microcontinent on the northern margin of the Weddell Sea, at 62°23.48'S, 43°27.10'W in 1305 m water depth. The inorganic properties of interstitial waters at this site, including sulfate reduction, biogenic methane production, and high concentrations of ammonia and phosphate, imply high microbial activity. However, no clear relationship between amino acid composition and concentration and the type of microbial activity (e.g., sulfate reduction or methane production) can be identified. […]695号站位位于威德尔海北缘的南奥克尼微大陆东南缘，地理坐标为南纬62°23.48′、西经43°27.10′，站位水深1305米。该站位间隙水的无机特性，包括硫酸盐还原作用、生物成因甲烷生成作用以及高浓度氨与磷酸盐，均指示存在高强度的微生物活动。然而，未能明确氨基酸组成与浓度和微生物活动类型（如硫酸盐还原作用或甲烷生成作用）之间的关联。[…]