Sökning: "serpentinite"

Hittade 2 uppsatser innehållade ordet serpentinite.

1. 1. Search for Preserved Methanogenic Organisms in Ophiolitic Rocks through Lipid Biomarker Analysis – Implications for Astrobiological Explorations

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Alexandra Zetterlind; [2020]
   Nyckelord :ophiolite; deep biosphere; archaea; methanogenesis; chemosynthesis; serpentinite-hosted ecosystems; lipid biomarkers; astrobiology; ofiolit; djupbiosfär; arkeér; metanogener; kemosyntes; serpentinit-drivna ekosystem; lipidbiomarkörer; astrobiologi;

   Sammanfattning : Serpentinization is a metamorphic low-temperature geological process, involving a series of chemical reactions that hydrate ultramafic rocks into serpentines and other minerals such as magnetite and brucite. Moreover, the process produces heavily reducing and highly alkaline fluids together with molecular hydrogen (H2) and methane (CH4), which have the capacity to support chemosynthetic microbial life. LÄS MER

3. 2. The Effect of Parent Material on Ectomycorrhizal Community Composition and Diversity

   Master-uppsats, Lunds universitet/Examensarbeten i biologi

   Författare :Abdallah Awad; [2012]
   Nyckelord :ectomycorrhizal fungi; granite; serpentinite; amphipolite; community composition; diversity; organic horizon; mineral horizon; Biology and Life Sciences;

   Sammanfattning : Abstract Nutrient availability is one of the most important components of soil chemistry, and has Been shown to strongly impact ectomycorrhizal community composition and diversity. Phosphorous, magnesium, and potassium are important macronutrients for plant growth. LÄS MER