User contributions for Rudolf Pohl

12 May 2024

• 11:0611:06, 12 May 2024 diff hist +272 N File:AUMVortex.JPG {{Information |Description=Artistic clockwise vortex structure |Source={{own}} |Date=12/05/2024 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Vortices

24 November 2023

• 16:5616:56, 24 November 2023 diff hist +540 N File:MyrmekiteQMDpor.png {{Information |Description=Thin section of the porphyric quartz monzodiorite of the Strontian pluton. Plagioclase with myrmekite borders (left) against K-feldspar (black, right side). Along the bottom from left sphene (diamond-shaped), quartz and biotite. Courtesy Lorence G. Collins. |Source={{own}} |Date=24/11/2023 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Petrology Category:Scotland Category:Myrmekite

14 October 2023

• 10:3210:32, 14 October 2023 diff hist +438 N File:1c10-7.jpg {{Information |Description=Myrmekite in the Ardara Pluton in Donegal, Ireland. |Source={{own}} |Date=14/10/2023 |Author= Rudolf Pohl |Permission=Permission was courteously granted by Lorence G. Collins who produced the slide |other_versions= }} Category:Petrology Category:Ireland Category:Plutonic rocks Category:Donegal

16 August 2023

• 10:5510:55, 16 August 2023 diff hist 0 File:Sourire coul 2.jpg →{{int:filedesc}}: Swap languages current

6 May 2023

• 15:1615:16, 6 May 2023 diff hist +1,116 User talk:Rudolf Pohl →Chetperronien-Klima current

17 April 2023

• 18:5318:53, 17 April 2023 diff hist 0 File:Combe Falide.jpg →{{int:filedesc}}: miniscule
• 18:5118:51, 17 April 2023 diff hist +199 N File:Combe Falide.jpg The ''Combe Falide'' is a Dry Valley in the commune of Saint-Martial-de-Vallette, Dordogne, France.

2 April 2023

• 09:5109:51, 2 April 2023 diff hist +398 N File:Bargeix6.jpg {{Information |Description=The hamlet Bargeix in Champeaux-et-la-Chapelle-Pommier, part of Mareuil en Périgord, Dordogne, France. |Source={{own}} |Date=02/04/2023 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Champeaux-et-la-Chapelle-Pommier Category:Mareuil en Périgord

9 November 2022

• 18:4118:41, 9 November 2022 diff hist +575 N File:ThiviersSNanthiat.jpg {{Information |Description=Thiviers Sandstone river pebble, split open. The sample comes from the Isle River near ''Le Pont de Madame'' in the commune of Nanthiat, Dordogne, France. |Source={{own}} |Date=09/11/2022 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Nanthiat Category:Rhyodacite in France Category:Geology of Dordogne Category:Metavolcanic rocks in France Category:Thiviers Sandstone Formation Category:Geology of Thiviers

28 October 2022

• 12:3712:37, 28 October 2022 diff hist +29 m File:24311-Nontron-géologie.svg added Category:Maps of Nontron Tag: HotCat

27 October 2022

• 17:2517:25, 27 October 2022 diff hist −48 m File:24490-Saint Privat en Périgord-argile.jpg removed Category:Maps of Saint-Priest-les-Fougères Tag: HotCat
• 17:2417:24, 27 October 2022 diff hist +39 m File:24490-Saint Privat en Périgord-argile.jpg added Category:Saint Privat en Périgord Tag: HotCat

26 October 2022

• 14:1614:16, 26 October 2022 diff hist −44 m File:24487-Saint-Pierre-d'Eyraud-argile.jpg removed Category:Maps of Saint-Pierre-de-Frugie Tag: HotCat
• 14:1614:16, 26 October 2022 diff hist +35 m File:24487-Saint-Pierre-d'Eyraud-argile.jpg added Category:Saint-Pierre-d'Eyraud Tag: HotCat

23 October 2022

• 13:5513:55, 23 October 2022 diff hist −43 m File:24429-Saint-Jory-las-Bloux-argile.jpg removed Category:Maps of Saint-Jory-de-Chalais Tag: HotCat
• 13:5513:55, 23 October 2022 diff hist +34 m File:24429-Saint-Jory-las-Bloux-argile.jpg added Category:Saint-Jory-las-Bloux Tag: HotCat

18 October 2022

• 09:4409:44, 18 October 2022 diff hist −47 m File:24496-Saint-Romain-et-Saint-Clément-argile.jpg removed Category:Maps of Saint-Romain-de-Monpazier Tag: HotCat
• 09:4409:44, 18 October 2022 diff hist +52 m File:24496-Saint-Romain-et-Saint-Clément-argile.jpg added Category:Maps of Saint-Romain-et-Saint-Clément Tag: HotCat
• 09:4309:43, 18 October 2022 diff hist −52 m File:24498-Saint-Saud-Lacoussière-argile.jpg removed Category:Maps of Saint-Romain-et-Saint-Clément Tag: HotCat
• 09:4109:41, 18 October 2022 diff hist +45 m File:24498-Saint-Saud-Lacoussière-argile.jpg added Category:Maps of Saint-Saud-Lacoussière Tag: HotCat
• 09:3609:36, 18 October 2022 diff hist −41 m File:24426-Saint-Jean-d'Estissac-argile.jpg removed Category:Maps of Saint-Jean-de-Côle Tag: HotCat
• 09:3609:36, 18 October 2022 diff hist +43 m File:24426-Saint-Jean-d'Estissac-argile.jpg added Category:Maps of Saint-Jean-d'Estissac Tag: HotCat

15 October 2022

• 13:3513:35, 15 October 2022 diff hist −49 m File:24454-Saint-Martin-de-Gurson-argile.jpg removed Category:Maps of Saint-Martin-de-Fressengeas Tag: HotCat
• 13:3513:35, 15 October 2022 diff hist +36 m File:24454-Saint-Martin-de-Gurson-argile.jpg added Category:Saint-Martin-de-Gurson Tag: HotCat

2 October 2022

• 20:3820:38, 2 October 2022 diff hist +354 N File:VoieRomaine5.jpg {{Information |Description=Ancient Roman road ''voie romaine'' just south of Piégut, Dordogne, France. |Source={{own}} |Date=02/10/2022 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Piégut-Pluviers Category:Ancient Roman roads
• 20:1020:10, 2 October 2022 diff hist +345 N File:VoieRomaine4.jpg {{Information |Description=Roman road ''voie romaine'' just south of Piégut, Dordogne, France |Source={{own}} |Date=02/10/2022 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Piégut-Pluviers Category:Ancient Roman roads

16 September 2022

• 17:5617:56, 16 September 2022 diff hist +356 N File:VorticeDipole.jpg {{Information |Description=Sketch of a vortex dipole showing the oppositely rotating gyres in the mushroom head region |Source={{own}} |Date=16/09/2022 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Vortices Category:Fluid dynamics

7 September 2022

• 21:5221:52, 7 September 2022 diff hist +31 m File:Trincou2 -Lecture seule-.jpg added Category:Milhac-de-Nontron Tag: HotCat

30 August 2022

• 19:2119:21, 30 August 2022 diff hist +33 m File:Aplite3.jpg added Category:Savignac-de-Nontron Tag: HotCat

10 August 2022

• 12:5912:59, 10 August 2022 diff hist +257 N File:Astro3.png {{Information |Description=Personal horoscope |Source={{own}} |Date=10/08/2022 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Horoscopes

15 December 2021

• 21:0321:03, 15 December 2021 diff hist +514 N File:NeitheaLA.jpg {{Information |Description=The Pectinida fossil Neithea in Lower Santonian bioclastic limestone. Found near ''Les Âges'' in the commune of Saint-Crépin-de-Richemont, Dordogne, France. |Source={{own}} |Date=15/12/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Pectinoidea Category:Pectinida fossils Category:Saint-Crépin-de-Richemont Category:Dordogne Category:Santonian
• 15:3515:35, 15 December 2021 diff hist +433 N File:SantonianNei.jpg {{Information |Description=Lower Santonian from ''Les Âges'', commune of Saint-Crépin-de-Richemont, Dordogne, France. The limestone is very rich in bryozoans. |Source={{own}} |Date=15/12/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Santonian Category:Saint-Crépin-de-Richemont Category:Dordogne

6 December 2021

• 16:1516:15, 6 December 2021 diff hist +574 N File:BandiatP3.jpg {{Information |Description=Strongly varnished (oxidized) and rounded quartz pebble from the Bandiat river. Near ''Les Îles'', commune of Saint-Martial-de-Valette, Dordogne, France. The pebble probably derives from a quartz vein in the Piégut-Pluviers Ganodiorite. |Source={{own}} |Date=06/12/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Quartz Category:Gravel Category:Bandiat Category:Saint-Martial-de-Valette Category:Dordogne
• 14:1214:12, 6 December 2021 diff hist +570 N File:BandiatP.jpg {{Information |Description=A strongly hematite-coated quartz pebble from the Bandiat river. Near ''Les Îles'', commune of Saint-Martial-de-Valette, Dordogne, France. The rounded pebble probably stems from a quartz vein within the Piégut-Pluviers Granodiorite. |Source={{own}} |Date=06/12/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Bandiat Category:Saint-Martial-de-Valette Category:Dordogne Category:Gravel Category:Quartz

5 December 2021

• 21:2221:22, 5 December 2021 diff hist +681 N File:RuisseauC.PNG {{Information |Description=Profile of the ''Ruisseau de la Côte'', a right hand tributary of the Bandiat in the communes Nontron and Saint-Martial-de-Valette, Dordogne, France. The profile shows knickpoints due to faulting in the Piégut-Pluviers Granodiorite. Especially the boundary fault of the Bandiat Graben stands out. |Source={{own}} |Date=05/12/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:River Category:Geomorphology [[Category:Nontron...
• 18:5418:54, 5 December 2021 diff hist +537 N File:GranoEpi2.jpg {{Information |Description=Sample of Piégut-Pluviers Granodiorite in Nontron, Dordogne, France. The joint surface of this rock is becoming an episyenite and is also covered in rosettes of white barite. |Source={{own}} |Date=05/12/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Granodiorite Category:Nontron Category:Dordogne Category:Massif Central Category:Variscan orogeny Category:Baryte

4 December 2021

• 15:3215:32, 4 December 2021 diff hist +1 File:Lamprophyre granodiorite.jpg →{{int:filedesc}}: Typos

25 November 2021

• 19:1019:10, 25 November 2021 diff hist +726 N File:RunitBard.PNG {{Information |Description=Thin section of a reddish aplite dike in granodiorite. The sample comes from NE of ''La Bardinie'', Nontron, Dordogne, France. Dark grey quartz stringers within slightly perthitic alkali feldspar. Some of the stringers have quite distinct boundaries following symmetry planes within the host - typical for graphic aka runic textures. |Source={{own}} |Date=25/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Aplite [[Categ...
• 13:5513:55, 25 November 2021 diff hist +562 N File:GranoTApl.jpg {{Information |Description=Deposition of tourmaline (schorl) on fine-grained, aplitic granodiorite in the process of greisenization. The sample is part of masonry in Nontron, Dordogne, France. |Source={{own}} |Date=25/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Tourmaline Category:Granodiorite Category:Nontron Category:Dordogne Category:Massif Central Category:Variscan orogeny Category:Geology of France

22 November 2021

• 16:3816:38, 22 November 2021 diff hist +810 N File:Runit7.PNG {{Information |Description=Thin section of a reddish aplite dikelet in coarse-grained granodiorite from NE of ''La Bardinie'', Nontron, Dordogne, France. The grey quartz grain in the center shows fluid inclusion trails, the microcline on the left with characteristic twinning is heaviliy sericitized, the alkali feldspar on the right shows beginning subgrain formation. A few small biotites can also be seen on the right hand side of the slide. |Source={{own}} |Date=22/11/2021 |Author= [[User:Rud...

21 November 2021

• 12:1312:13, 21 November 2021 diff hist +1 File:Runit16.PNG →{{int:filedesc}}: Typo
• 12:1012:10, 21 November 2021 diff hist +745 N File:Runit16.PNG {{Information |Description=Thin section of a reddish aplite dike in granodiorite - NE of ''La Bardinie'', Nontron, Dordogne, France. The central quartz grain shows undulous extinction and beginning subgrain formation, marked by red arrows. Above plagioclase, below right a seriticized alkali feldspar, above left small recrystallized quartz grains. Courtesy John Wiesenfeld (CSUN), who did the thin sectioning. |Source={{own}} |Date=21/11/2021 |Author= Rudolf Pohl |Permission...

19 November 2021

• 12:0412:04, 19 November 2021 diff hist +565 N File:GranoFol.jpg {{Information |Description=Strongly weathered Piégut-Pluviers Granodiorite, coarse-grained facies. This sample comes from Nontron, Dordogne, France. The weathering clearly brings out the foliation at the top of the sample. |Source={{own}} |Date=19/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Granodiorite Category:Nontron Category:Dordogne Category:Massif Central Category:Weathering Category:Foliation (geology)

18 November 2021

• 23:2123:21, 18 November 2021 diff hist +38 File:Runit15.PNG →{{int:filedesc}}: Add graphic texture
• 23:1623:16, 18 November 2021 diff hist +620 N File:Runit15.PNG {{Information |Description=Thin section of a small reddish aplite dike in granodiorite NE of ''La Bardinie'', Nontron, Dordogne, France. White quartz stringers in grey perthitic alkali feldspar are traversed by inclusion trails. Courtesy John Wiesenfeld (CSUN), who did the sectioning. |Source={{own}} |Date=18/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Aplite Category:Granodiorite Category:Nontron Category:Dordogne [[Category:Ma...
• 19:2819:28, 18 November 2021 diff hist +529 N File:ApliteMyr.jpg {{Information |Description=Rose coloured aplite dike from NE of La Bardinie, Nontron, Dordogne, France. The about 5 centimetre wide dike shows a very special variety of graphic or runic texture. |Source={{own}} |Date=18/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Aplite Category:Granodiorite Category:Nontron Category:Dordogne Category:Massif Central Category:Variscan orogeny

16 November 2021

• 12:2412:24, 16 November 2021 diff hist +541 N File:NexonLCG13.jpg {{Information |Description=Leucocratic dike rock (left) in contact with the Nexon-Les Cars Granite (right). The sample comes from the old quarry in Nexon, Haute-Vienne, France. |Source={{own}} |Date=16/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Granite Category:Nexon Category:Haute-Vienne Category:Limousin Category:Massif Central Category:Variscan orogeny Category:Geology of France
• 12:1712:17, 16 November 2021 diff hist +525 N File:NexonLCG19.jpg {{Information |Description=Heavily sheared leucocratic dike rock in the Nexon-Les Cars Granite. Sample comes from the old quarry in Nexon, Haute-Vienne, France. |Source={{own}} |Date=15/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Granite Category:Nexon Category:Haute-Vienne Category:Limousin Category:Massif Central Category:Variscan orogeny Category:Geology of France

15 November 2021

• 22:0422:04, 15 November 2021 diff hist +669 N File:NexonLCG17.jpg {{Information |Description=Heavily sheared leucocratic dike within the Nexon-Les Cars Granite. The hand sample comes from the old quarry in Nexon, Haute-Vienne, France. The surfaces on the bottom and on the left side are all sheared and coated with epidote. The internal shearing reveals S-C structuring. |Source={{own}} |Date=15/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Granite Category:Nexon Category:Haute-Vienne [[Category:Limous...
• 21:5321:53, 15 November 2021 diff hist +563 N File:Nexon3.jpg {{Information |Description=Sheared Nexon-Les Cars Granite in the old quarry of Nexon, Haute-Vienne, France. The intense shearing created a cylindrical fold structure or possibly the inception of a sheath fold within the granite. |Source={{own}} |Date=15/11/2021 |Author= Rudolf Pohl |Permission= |other_versions= }} Category:Granite Category:Nexon Category:Haute-Vienne Category:Limousin Category:Massif Central Category:Geology of France