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: Geological Society of Norway 2018
• Subjects: Mefjell; Norway; Nordland
• Online Access: http://hdl.handle.net/11250/2592620; 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,...