Open AccessPalaeomagnetism of the Nexø Sandstone from Bornholm Island, Denmark
Author(s) -
Prasad S. N.,
Sharma P. V.
Publication year - 1978
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1978.tb05501.x
Subject(s) - precambrian , geology , paleomagnetism , paleontology , shield , geochemistry
Summary. Samples from the Nexø Sandstone of the Lower Cambrian‐ Precambrian boundary in South Bornholm reveal a stable NRM with a direction after magnetic cleaning of D = 226°, I = ‐ 30° (α 95 = 11.5°). This NRM appears to originate in the detrital hematite grains rather than in the red cement of the sandstone. The stable NRM is likely to be of primary origin and reflects a Lower Cambrian pole at 104° W, 38° N (dp = 7°, dm = 11°). Apparent discrepancies between the Bornholm pole and the few other published Early Cambrian/Late Precambrian poles from the Baltic Shield are consistent with the suggestion of large polar movements in those times.