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Tectonics

Tectonics

29 items

Person in a blue jacket and helmet standing at the foot of a towering rock wall of tightly folded grey, white and brown gneiss bands that swirl and curve. — Folded gneiss in Norway Simon Fuhrmann

Thin-section micrograph of a dark rock with a long blue elongated glaucophane grain in the middle, surrounded by fine green and yellowish crystals and large dark brown rounded grains. — Glaucophane grains in retrogressed metabasalt Samuele Papeschi

Road with a white pickup truck winding into a deep valley between huge pale, dusty slopes of layered tuff, with grey cliff bands near the top under a clear blue sky. — Tuffs above us: how tiny we are Szabolcs Harangi

Llama walking along a roadside barrier beside a blue lake, with a snow-capped cone-shaped volcano behind it, a smaller snowy peak far right and a large wing-shaped white cloud in a deep blue sky. — You never walk alone! Szabolcs Harangi

Pale limestone ridges folded into steep, curving bands on scrubby hillsides lit by low evening sun, with a dark green pine forest along the bottom. — La Olla, Aliaga Geological Park Elena Núñez-Guerrero

Tall pale limestone rock walls partly veiled by mist above a dark silhouetted ridge, with the outline of a signpost standing against the bright cloud. — Where Africa and Europe are connected Magdalena Stefanova Vassileva

Narrow straight channel of calm dark water cutting through layered rocky shore platforms to the open sea, with grey rock on the left and darker rock fringed with brown seaweed on the right. — Linear structure on the surface Ekaterina Kulakova

Tall cliff of pale yellow gypsum layers alternating with green and red shales, crossed by white veins and offset by a sloping fault, with several people at its base for scale. — Sea level change and tectonics collide Dan Killam

Small group of people on a bare desert ridge looking out over a vast landscape of folded, rounded hills in shades of beige, ochre and grey, below darker mountains. — Field work in the Atacama desert Robin Lacassin

Steep slope of brown and grey layered rock with strongly folded, curving bands, set against a blue sky, with a broad snow-covered mountain massif and glaciers in the distance on the left. — Alps highest peak meets folded sea floor Antoine Clausse

Volcanic landscape at dawn: a dark ash cone and a steaming crater rim rising from a sea of white fog, a tall pointed volcano behind under a pink and violet sky. — Mt. Bromo, East Java, Indonesia. Exploring Remote Spaces Matteo Basilici

Snowy slope with dark boulders in the foreground, overlooking layer upon layer of blue mountain ridges and valleys filled with haze, under a faintly pink sky. — The valley along the fault Cyril Mayaud

Rock face of thin dark limestone layers crumpled and stacked into tight folds, with a geological hammer in the middle for scale, next to a block of massive grey limestone on the right. — Tight fold in limestone Nannan Cheng

Stitched panorama with stepped edges of a green mountain slope crossed by a long grey cliff band, rising to dark rocky peaks with patches of snow, a darker rock layer lying above a paler one. — Panorama of the Glarus Thrust Christian Heine

Jagged dark rock peaks sitting on a pale grey cliff band, with a sharp boundary between the dark upper rock and lighter rock below, above scree slopes with snow patches and green meadows. — Glarus Thrust and Tschingelhörner viewn from South Christian Heine

Close-up through a microscope eyepiece of a tiny dark cylinder with flaking gold foil on its surface, held in the black jaws of tweezers over a scratched metal plate. — Artificial peridotite takes its gold coat off Thomas P. Ferrand

Steep gorge wall of thin, tightly stacked grey rock layers tilted almost vertical and curving across the face, with tufts of grass, small trees and a leafy slope at the side. — Layered Rocks of the Préalpes Fabio Crameri

Person in a yellow hard hat and blue shirt standing by a tall dark grey cliff of steeply tilted layered sediments, crossed diagonally by a pale brown dyke, with a yellow case on the ground. — Mesozoic Lamprophyre dyke crosscutting Ordovician sediments near Leading Tickles, Newfoundland, Canada Alexander Peace

Rocky coast of steeply tilted, thinly layered golden rock in rows of ridges, with blurred milky blue-green sea washing between them under a grey sky. — A leap into the Jurassic Alessandro Righetti

Cluster of huge rounded grey limestone boulders on a grassy slope, with dark mountains half hidden by bright white clouds under a deep blue sky. — Remains of a former ocean floor Jana Eichel

Silhouette of a small boat moored on a calm lake that mirrors a golden sunset sky with dark clouds, a low hill and a dark shoreline on the right horizon. — Resting before the storm Nicolas Waldmann

Narrow winding crack of open water in snow-covered sea ice, edged with lines of small ice crystals, with thick slabs of ice stepped up beside it in low sunlight. — Arctic Sea Ice Tectonics Kai Boggild

Angular unconformity in a sea cliff: steeply tilted dark grey rock layers below flat-lying red and yellow sandstone beds, with a person on a pebble beach for scale. — Angular unconformity André Cortesão

False-colour satellite image of folded mountains: a long red ridge with jagged edges crosses green, purple and yellow terrain, dark round blotches around it, inset of a dinosaur head and a 5 km scale bar. — A velociraptor in the Zagros fold and thrust belt Stephane Dominguez

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