Geology to share

The photos in Geology to Share have been captured by me (except those indicated) and they are licensed under Creative Commons license (see below). They are free to use for educational and/or public outreach purposes, with the corresponding credit.

Sedimentary structures

Black shale interbedded with silt layers, Devonian Appalachian Basin, Lake Erie, New York, USA

Cross bedding in sandstones from upstate New York, USA

Heterolithic structure in the Devonian Appalachian Basin, Lake Erie, New York, USA

Black shale interbedded with silt layers, Devonian Appalachian Basin, Lake Erie, New York, USA

Silt layers within laminated black shales, Devonian Appalachian Basin, Lake Erie, New York, USA

Black shale interbedded with silt layers, Devonian Appalachian Basin, Lake Erie, New York

Organic-rich mudstones, Pilmatué Member, Agrio Formation, Lower Cretaceous Neuquén Basin

Organic-rich mudstones with forms, Pilmatué Member, Agrio Formation, Lower Cretaceous Neuquén Basin

Ammonite impression over organic-rich mudstones, Pilmatué Member, Agrio Formation, Lower Cretaceous Neuquén Basin

Organic-rich mudstones with abundant forms, Pilmatué Member, Agrio Formation, Lower Cretaceous Neuquén Basin

Pilmatué Member, Agrio Formation, Neuquén Basin, Argentina

Large scale sedimentary features

Marl-limestone alternation, Agrio Formation, Lower Cretaceous Neuquén Basin, Argentina

U-shaped valley in Lagunas de Epulaufquen, northern Neuquén, Argentina

Boundary between the Agrio Formation (left, younger) and the Mulichinco Formation (right) at Puerta de Curaco, Neuquén

Aerial view of a fluvial system in Lagunas de Epulaufquen, northern Neuquén, Argentina

Glacial striations in Lagunas de Epulaufquen, northern Neuquén, Argentina

Modern deposits

Cross bedding in modern muddy (fine to very fine) sand deposits in river banks, Big Bend National Park, Texas, USA

Lamination in modern muddy (fine to very fine) sand deposits in river banks, Big Bend National Park, Texas, USA

Sets of cross bedding in modern muddy (fine to very fine) sand deposits in river banks, Big Bend National Park, Texas, USA

Mud cracks in modern river banks, Big Bend National Park, Texas, USA

Cross bedding in modern muddy (fine to very fine) sand deposits in river banks, Big Bend National Park, Texas, USA

Coral clasts in modern carbonate platforms, Playa del Carmen, Mexico

Fossils concentration in modern carbonate platforms, Playa del Carmen, Mexico

A small tube in modern river banks deposits, Big Bend National Park, Texas, USA

Anthropogenic clast (!) in modern carbonate platforms, Playa del Carmen, Mexico

Algae (sargassum) accumulation in modern carbonate platforms, Playa del Carmen, Mexico

Miscellaneous

Geyser near the Domuyo Volcano, northern Neuquén, Argentina

Geyser in Las Olletas near the Domuyo Volcano, northern Neuquén, Argentina

Don't feed the animals! Argentinosaurus huinculensis replica in Museo Carmen Funes, Plaza Huincul, Neuquén, Argentina

Ammonites and a fossil cellphone in Museo Carmen Funes, Plaza Huincul, Neuquén, Argentina

Columnar jointing in northern Neuquén, Argentina

Pyrite crystals in Basilica Sagrada Familia in Barcelona. Gaudí found great inspiration in nature.

The Basilica Sagrada Familia's towers are decorated with pyrite crystals, Barcelona, Spain

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