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Sedimentology

Sedimentology

33 items

Sandstone cliffs rise against a clear blue sky, with a small white vehicle near the base. — Dolomite–Shale–Gypsum Succession Exposed in Uptown Cairo, Egypt Ahmed-M- Mohy

Layered rock formations stand near a beach, with green hills and distant mountains under a cloudy sky. — The "Pancake Rocks" in Punakaiki in Aotearoa New Zealand Maxime Grandin

Geologist examining rock layers in a rugged, arid landscape under a clear blue sky. — Siltstone & Kaolinite Outcrop Metwally Hamza

Close-up of a rough, porous rock surface with scattered small holes and a textured, beige appearance. — Fossilized Coral Reefs, Al-Naizak Crater Lake, Marsa Alam City, Red Sea, Egypt Metwally Hamza

Cracked, textured surface with scattered fragments and scattered light. — Calcite Crystals Occurred in the Pb/Zn Ores Depositional Environment as a result of the Hydrothermal Activity Metwally Hamza

Stalactites and stalagmites grow in a dimly lit cave. — Needles-like Calcite Crystals with Pb/Zn Ores Occurrence Metwally Hamza

Fragments of light-colored material scattered on a textured, reddish-brown surface. — Needles-like Calcite Crystals within Limegrits in a region of Pb/Zn Ores Occurrence Metwally Hamza

Rocks with coin for scale, showing layered formations and textures. — Outcrop of Calcite/Gypsum Full-growth Crystals Metwally Hamza

Man standing on desert rocks with arms outstretched, smiling. — DESERT BOULDERS (due to weathering processes in the region) Metwally Hamza

Dry, sandy cliff face with colored outlines highlighting areas of interest, under a clear blue sky. — Outcrop of S-shaped Stretching occurred in a layer of highly altered Limegrits Metwally Hamza

Rocky terrain with layered earth formations and scattered debris in a desolate landscape. — Outcrop of Calcite/Gypsum Deposits with Siltstone, Kaolinite, and Fanglomerates of the Red Sea Facies (EGYPT) Metwally Hamza

Sunglasses rest on sandy ground scattered with white debris. — Needles-like Altered Gypsum Crystals within Lime and Sands Deposits Metwally Hamza

Close-up view of layered rock formations with embedded fossils. — Cross section of shelly phosphorite from Ülgase, Estonia Sophie Graul

Complex rock formation with wavy layers and crystalline structures. — Cross-section of a brachiopod from the shelly phosphorite of Estonia, former Ülgase mine Sophie Graul

Sunglasses rest on cracked, white earth in a desolate landscape. — Mud Cracks Outcrop in Arid Area, Red Sea Coast, Egypt Metwally Hamza

Close-up view of a concrete surface with embedded stones and a blue permanent marker. — Well-sorted Marine Clastics (medium- to coarse-sized) embedded within iron-oxides cement Metwally Hamza

Rusty orange sediment covers white rocky debris in a layered formation. — Sandstone with Kaolinite Bedding (brittle to semi cohorent) Metwally Hamza

Two microscopic views of a cylindrical object with surface details and cracks at 223x magnification. — Micro textures of Estonian shelly phsophorites Sophie Graul

Gray, weathered wood fragment with textured surface and rough, broken edge. — Section of a drillcore containing Tremadocian black-shale Sophie Graul

Two dark, textured objects rest on a snowy, uneven surface with scattered debris. — Shelly phosphorites from the Aseri deposit. Sophie Graul

A close-up view of a partially frozen, metallic object with striped patterns. — Carbonate-cemented shelly phosphorite Sophie Graul

Microscopic view of a damaged electronic component with scattered metallic debris. — Microphotograph of a calcite geode found in a glendonite structure Sophie Graul

Close-up of a textured, dark-colored fabric or material inside a box. — Shelly phosphorite drill core Sophie Graul

Weathered wooden planks rest on a stone foundation in dim light. — Pyritised brachiopod shell from Aseri phosphorite deposit Sophie Graul

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