Detecting multiscale karst features including hidden caves using microgravimetry in a Caledonian nappe setting: Mefjell massif, Norway.

• Published in: Norwegian Journal of Geology
• Main Authors: Solbakk, Terje, Fichler, Christine, Wheeler, Walter H, Lauritzen, Stein-Erik, Ringrose, Philip
• Format: Article in Journal/Newspaper
• Language: English
• Published: Norsk Geologisk Forening 2019
• Subjects: gravity acquisition; gravity interpretation; cave detection; microgravity; Karst; Mefjell; Norway; Nordland
• Online Access: https://hdl.handle.net/1956/20029; https://doi.org/10.17850/njg98-3-04

Cave passages and karst features form negative density contrasts expressed in gravity field anomalies. We present an interpretation approach for microgravimetry, applicable for challenging geological settings with heterogeneous lithologies. The workflow covers not only detection of large cave rooms,...