English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Jama Kaltbach je razvita v Hochgantskem eocenskem pescenjaku na obmocju Siebenghengste v Svici. Rezultat ponovne izmere jame je precej vecja dolžina, nov nacrt jame in stevilna opažanja, ki kažejo na to, da jama ni nastala z »normalno speleogenezo«, ampak je t.i. fantomska jama. Fantomske jame nastajajo pri delnem preperevanju necistega apnenca v toplih klimah, v pogojih nizkega hidravlicnega gradienta. Ob povecanju gradienta, voda izpere netopni preostanek, pri cemer nastane jama. Clanek obravnava geomorfoloske znacilnosti jam, ki nam omogocajo prepoznavati fantomske jame. Kaltbach cave is developed within the Eocene Hohgant sandstone in the Siebenhengste area in Switzerland. A remapping project of the cave resulted in a huge increase in length. It also produced a complete, updated map and longitudinal section. The cave’s morphology does not fitwiththe“normal”speleogenesis:itisaso-calledphantom cave. Phantoms are created by differential weathering of impure limestone under a preferably warm climate and a very low hydrologic gradient. Once the gradient steepens, the undissolved residual sediments are piped out; the “cave” manifests itself. The paper discusses the geomorphological features that permit to recognize the phantom caves.

Kaltbach Cave (Siebenhengste, Switzerland): Phantom of the Sandstone?