Paleomagnetism of Jurassic sediments from the western border of the Rheingraben, Alsace (France)

Upper Bajocian oolithic limestones and Pliensbachian marls and marly ovoids from 9 sites distributed over 4 exposures at the western border of the Rheingraben (mean coordinates 47.8° N, 7.5° E) were sampled by 92 samples. The carriers of the natural remanent magnetization in the limestones are goethite and magnetite, and in the marls and ovoids the carrier is magnetite. After tectonic correction, the characteristic component of NRM isolated in the cleaning processes was mostly of normal polarity. The mean direction is D = 30.1°, I = 53.2° (N = 7, k = 92, α95 = 6.3°) and the pole position is 63.1° N, 120.1° E. It is close to the Jurassic reference data for the stable European plate.           ARK: https://n2t.net/ark:/88439/y066400 Permalink: https://geophysicsjournal.com/article/122 &nbsp

Paleomagnetic study of upper carboniferous volcanics from Sudetes (Poland)

Upper Carboniferous and Permian volcanites from Sudetes were sampled in 11 localities (mean site coordinates: 50.8°N, 16.3°E). Thermal demagnetizations of the samples showed several magnetic components. But in one site, all high-temperature components are reversed. The interpretation of the results shows a first, primary magnetization acquired probably in the Upper Carboniferous before tilting (N = 8, D = 192°, I = -2°, k = 27, α95 = 11°, pole: 39°N, 181°E) and a remagnetization acquired later, during or after tilting (N = 5, D = 190°, I = -19°, k = 18, α95 = 18°, pole: 48°N, 181°E).           ARK: https://n2t.net/ark:/88439/y097077 Permalink: https://geophysicsjournal.com/article/125 &nbsp

Paleomagnetic age constrains and magneto-mineralogic implications of the Triassic paleosurface in Europe

International audienc

Restitution de la paléosurface triasique par datation des ré-aimantations inscrites dans les massifs paléozoïques européens

International audienc