Carbonate mineralogical and isotopic analyses of TV-guided grab samples and TV-guided box corer samples from the Shumagin area

• Main Authors: Greinert, Jens, Bohrmann, Gerhard, Elvert, Marcus
• Format: Dataset
• Language: English
• Published: PANGAEA 2002
• Subjects: 40-1; Alaska; USA; Giant box corer; GKG; KODIAK-VENT; SO110/1b; SO110/1b_40-1; SO97/1; SO97/1_97; Sonne; SO-RO; Television-Grab; TVG; Kodiak
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.767424; https://doi.org/10.1594/PANGAEA.767424

Methane seepage leads to Mg-calcite and aragonite precipitation at a depth of 4,850 m on the Aleutian accretionary margin. Stromatolitic and oncoid growth structures imply encrustation of microorganisms (microbial mats) in the host sediment with a unique growth direction downward into the sediment,...