Tillites et tilloïdes du massif armoricain
| Autor: | F. Dore, Lionel Dupret, Jean Le Gall |
|---|---|
| Přispěvatelé: | Dubigeon, Isabelle, Laboratoire de Géologie de la Faculté des Scienes de caen, Faculté des sciences de Caen |
| Jazyk: | francouzština |
| Rok vydání: | 1985 |
| Předmět: |
010504 meteorology & atmospheric sciences
Paleozoic [SDU.STU]Sciences of the Universe [physics]/Earth Sciences 010502 geochemistry & geophysics Oceanography 01 natural sciences Conglomerate Sedimentary depositional environment Paleontology Glaciation Tillite Glacial period Pebble Ecology Evolution Behavior and Systematics ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences Earth-Surface Processes geography geography.geographical_feature_category Sedimentologie Massif Diamictite Geologie Regionale Ordovician [SDU.STU] Sciences of the Universe [physics]/Earth Sciences Massif Armoricain Geology |
| Zdroj: | Palaeogeography, Palaeoclimatology, Palaeoecology Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 1985, 51, pp.85-96 |
| ISSN: | 0031-0182 |
| Popis: | A glacial origin had been suggested for the Upper Brioverian pebble mudstones of the Armorican Massif. The lack of any true evidence of glacial abrasion on the pebbles, the turbiditic sedimentary environment and the great amount of resedimentation figures would rather plead for a deposition by debris-flow or mass-flow. The Late Ordovician diamictites which contain striated pebbles are inferred to be of glacio-marine origin. The new palaeomagnetic data are suggesting that the periglacial deposits of southeastern Europa are located close to the Late Ordovician pole for Gondwanaland. |
| Databáze: | OpenAIRE |
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