Tectonic speleogenesis of Devis Hole, Nevada, and implications for hydrogeology and the development of long, continuous paleoenvironmental records
Devils Hole is located in a region of active extension. Such extensional environments can provide conditions favorable for accumulation of deposits preserving long, continuous paleoenvironmental records. The precipitates in Devils Hole store
chronologies of flow system water-level fluctuations, hydrochemistry, a half-million-yr proxy paleoclimate record, evidence of Devis Hole's tectonic origin, and probably atmospheric circulation.
Paleoclimatic inferences from a 120 000 yr calcite record of water table fluctuation in Browns Room of Devils Hole, Nevada
, a subterranean air-filled chamber of Devils Hole fissure adjacent to the discharge area of the large Ash Meadows groundwater flow system in southern Nevada. Although different in detail, water-level fluctuation recorded by Browns Room calcites generally correlate
instead of depositional or push end-moraines. The landscape development in relation to the melting of dead-ice is discussed as Laach tephra has been found in kettle holes and lake deposits undisturbed.
), fresh water intake from the mainland and special morphological features, for example breath holes of seals, or icebergs favour the decay of the sea ice. Despite of the short ice-free period of about four and a half months the geomorphological impact