331 ± 9 Ma emplacement age of the Soultz monzogranite (Rhine Graben basement) by U/Pb ion-probe zircon dating of samples from 5 km depth
Pavel Alexandrov and Jean-Jacques Royer and Étienne Deloule. ( 2001 )
in: Comptes Rendus de l'Acad{\'e}mie des Sciences - Series IIA - Earth and Planetary Science, 332:12 (747-754)
Abstract
Drilling at Soultz-sous-Forêts, France, conducted as part of the European ‘Hot Dry Rock’ Project, penetrated the Rhine Graben basement down to 5 090 m and revealed a porphyritic monzogranite. Chemical composition and REE patterns of three samples at 5 km depth indicate homogeneous composition with a slight vertical differentiation, suggesting stable P–T conditions after the magma emplacement. U/Pb ion-probe zircon dating provides an emplacement age at 331±9 Ma. This age is in agreement with those of the other intrusive granitoids in this part of the Variscan segment, indicating a period of intensive magmatic activity around 330 Ma.
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@article{alexandrov:hal-04053605, abstract = {Drilling at Soultz-sous-Forêts, France, conducted as part of the European ‘Hot Dry Rock’ Project, penetrated the Rhine Graben basement down to 5 090 m and revealed a porphyritic monzogranite. Chemical composition and REE patterns of three samples at 5 km depth indicate homogeneous composition with a slight vertical differentiation, suggesting stable P–T conditions after the magma emplacement. U/Pb ion-probe zircon dating provides an emplacement age at 331±9 Ma. This age is in agreement with those of the other intrusive granitoids in this part of the Variscan segment, indicating a period of intensive magmatic activity around 330 Ma.}, author = {Alexandrov, Pavel and Royer, Jean-Jacques and Deloule, {\'E}tienne}, doi = {10.1016/S1251-8050(01)01594-4}, hal_id = {hal-04053605}, hal_version = {v1}, journal = {{Comptes Rendus de l'Acad{\'e}mie des Sciences - Series IIA - Earth and Planetary Science}}, keywords = {U/Pb geochronology ; ion-probe ; zircons ; Visean ; Soultz-sous-For{\^e}ts ; Rhine Graben ; France ; g{\'e}ochronologie U/Pb ; microsonde ionique ; zircons ; Vis{\'e}en ; Soultz-sous-For{\^e}ts ; graben du Rhin ; France}, month = {June}, number = {12}, pages = {747-754}, publisher = {{Elsevier}}, title = {{331 $\pm$ 9~Ma emplacement age of the Soultz monzogranite (Rhine Graben basement) by U/Pb ion-probe zircon dating of samples from 5~km depth}}, url = {https://hal.univ-lorraine.fr/hal-04053605}, volume = {332}, year = {2001} }