Methane in underground air in Gibraltar karst

Little is known about the abundance and geochemical behaviour of gaseous methane in the unsaturated zone of karst terrains. The concentrations and δ13C of methane in background atmosphere, soil air and cave air collected at monthly intervals over a 4yr period are reported for St. Michaels Cave, Gibr...

Full description

Saved in:
Bibliographic Details
Published in:Earth and planetary science letters 2013-07, Vol.374, p.71-80
Main Authors: Mattey, D.P., Fisher, R., Atkinson, T.C., Latin, J.-P., Durrell, R., Ainsworth, M., Lowry, D., Fairchild, I.J.
Format: Article
Language:English
Subjects:
carbon isotopes
cave
ground air
methane
methanotrophy
ventilation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Little is known about the abundance and geochemical behaviour of gaseous methane in the unsaturated zone of karst terrains. The concentrations and δ13C of methane in background atmosphere, soil air and cave air collected at monthly intervals over a 4yr period are reported for St. Michaels Cave, Gibraltar, where the regional climate, surface and cave processes are well documented. Methane concentrations measured in Gibraltar soil are lower than the local background atmosphere average of 1868ppb and fall to
ISSN:0012-821X
1385-013X
DOI:10.1016/j.epsl.2013.05.011