User:Woudloper

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nl-N Deze gebruiker heeft het Nederlands als moedertaal. en-4 This user has near native speaker knowledge of English. de-2 Dieser Benutzer beherrscht Deutsch auf fortgeschrittenem Niveau. fr-2 Cet utilisateur dispose de connaissances intermédiaires en français. es-1 Esta persona tiene un conocimiento básico del español. it-1 Questo utente può contribuire con un livello elementare in italiano.
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Woudloper/Woodwalker is a young geologist from Berne, Switzerland. On commons I like to create pictures and diagrams that illustrate geological processes, though most of my pictures are just photos. If you want to have a translation of any of my files into any language, please feel free to contact me.

Some files I made:

Pictures of rocks

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  A boundstone, a clastic sedimentary rock made of fossils. In this case Jurassic Pelecypoda gryphea shells
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  Isoclinal folds and shearing in an orthogneiss
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  Large-scale folds in a mountain side (Gasteretal, Switzerland)
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  White vesicles (bubbles) in basaltic lava
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  Diamond-bearing kimberlite, green pyroxene clasts
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  Pyroxenite and peridotite banding: result of fractional crystallisation in the Earth's mantle
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  Piece of the Earth's mantle taken to the surface by volcanic activity
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  Mylonitic and amphibolitic gneiss, nice porphyroclasts
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  Large phenocrysts in a granite. Most likely they form by recrystallisation when the intrusion cools
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  Boudinage in a sheared orthogneiss
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  Ultrahigh pressure metamorphism turned this gabbro (after being subducted) into an eclogite
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  Banded Iron Formation, more than 3 billion years old
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  Thin sections of rocks under the microscope

Pictures of fossils

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  Fossil fern from the Upper Carboniferous (300 million years old)
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  Annularia stellata, another Carboniferous plant fossil
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  Fossil ammonite from the Lower Cretaceous (130 million years old)
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  More lower Cretaceous ammonites
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  Fossil trilobite from the Devonian (360 million years old)
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  Claw of the dinosaur Therizinosaurus (70 million years old)
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  Grasshopper fossil in an Upper Cretaceous rock

Diagrams

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  Diagram showing the rock cycle (+legend on file page)
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  Diagram showing volcanic and intrusive structures
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  Magmatic and volcanic processes
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  Diagram explaining the relation between plate tectonics and generation of magma
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  Diagram explaining fractional crystallisation
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  Diagram showing cross-cutting relationships
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  Illustration of the principle of lateral continuity
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  Diagrams showing stratigraphic relations
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  Schematic representation of sedimentary facies shifts
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  Schematic representation of cementation and compaction processes in a sandstone
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  Schematic representation of an inverse fault (original by RobinL)
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  Blind thrust fault with fault propagation folding
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  Diagram showing the principle of isostatic equilibrium in the Earth's lithosphere
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  Schematic representation of a metamorphic reaction
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  Metamorphic reactions in P-T space
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  Metamorphic facies
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  ACF triangles for metamorphic rocks
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  AFM triangles for metamorphic rocks
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  (Approximate) mineralogy of igneous rocks
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  Classification scheme for aphanitic igneous rocks
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  My version of the classification of plutonic rocks (Dutch). Simplified it by using colours
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  Cleavage modes (original by Fradeve11)
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  Ophiolite sequence (original by Fradeve11)
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  Cladistic diagram of dinosaur evolution (with the advice of MWAK)
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  Species that migrated during the Great American Interchange

Geologic and paleogeographic maps

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  Geologic map of the NW of France
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  Geologic map of SE England and the English Channel
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  Geologic map of SW England and Wales
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  Tectonic map of Europe
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  Tectonic map of the Mediterranean
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  Graben structures of the southern Netherlands
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  Caledonian orogeny
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  Hercynian/Variscan orogeny
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  Hercynian basement structures of Western Europe
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  Fossil evidence for the Iapetus Ocean

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