File:Primaerhoehle Kalktuffbarre Baera Schwaebische-Alb.jpg

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Deutsch: Angeschnittene Primärhöhle in einer großen Kalktuffbarre bei „Ensisheim“. Die Kalktuffbarre ist eine der drei übrig gebliebenen, nicht mehr abbauwürdigen, Teile eines ehemaligen Steinbruches im Tal des kleinen Flusses Bära, Schwäbische Alb (Westalb). (Detail aus dem Foto: Image:Kalktuffbarre_Ensisheim-Baeratal_Schwaebische-Alb.jpg),. Das poröse, schlammige Sediment wurde in einer Warmzeit um die Wende Pleistozän/Holozän abgelagert und hat sich über Jahrtausende zu Gestein verfestigt. (12000-6000).
Wie bei Kalktuff üblich, bilden sich durch Kalklösung mächtige Klüfte und auch Hohlräume, die sich nach sehr langen Zeiten (mehrere Tausend Jahre) u. U. zu Primärhöhlen entwickeln können.

English: Primary cave within a huge Travertine sedimentation, discovered when quarrying hat not yet been quitted, valley of river Bära in “Ensisheim”, West Swabian Alb.
”Secondary” limestone sedimentation, as chemically precipitated from karstwater, always contains cracks and joints, which may, after thousand of years, even grow to become open and finally closed cavities. The photo is a detail of: Image:Kalktuffbarre_Ensisheim-Baeratal_Schwaebische-Alb.jpg.
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current17:00, 22 January 2017Thumbnail for version as of 17:00, 22 January 20171,200 × 1,800 (2.11 MB)Ustill (talk | contribs)User created page with UploadWizard

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