Sedimentary Rock Collection (page 8)

Ammonite fossils C016 / 6000
Ammonite fossils. At left is an Aulacosphinctoides infundibulus ammonite that dates to the Lower Tithonian, and was found in Middle Spiti Shales, Niti Pass, Himalayas, Nepal

Flint handaxe with fossil echinoid C016 / 6004
Cat of a flint handaxe incorporating a fossil echinoid. Specimen from the Middle Gravels of Swanscombe, Kent

Limestone pavement C018 / 0049
Limestone pavement, the Burren, Co. Clare, Ireland

Gale Crater landscape, Mars C014 / 4937
Gale Crater landscape, as imaged by NASAs Curiosity rover on Mars. This rover, part of the Mars Science Laboratory (MSL) mission, landed here on 6 August 2012

Mount Sharp rock formations, Mars C014 / 4936
Mount Sharp rock formations, as imaged by NASAs Curiosity rover on Mars. This rover, part of the Mars Science Laboratory (MSL) mission, landed in the Gale Crater on 6 August 2012

Conglomerate, Broome, Western Australia
A conglomerate is a rock consisting of individual clasts within a finer-grained matrix that have become cemented together. Broome, Western Australia

Dover Harbour, UK
Dover Harbour. View of a breakwater at the entrance to Dover Harbour, UK, with the famous White Cliffs in the background

Fossil bryozoan, SEM C016 / 5602
Fossil bryozoan. Scanning electron micrograph (SEM) of a fossilised bryozoan (Actinopora disticha). Specimen from Cretaceous Chalk, Santonian, Kent, UK

Rhynchosaurus reptile, footprint fossil C016 / 5110
Rhynchosaurus reptile, footprint fossil. These footprints, dating from the Triassic, were found in Keuper Sandstone from a quarry in Rathbone Street, Liverpool, UK. The slab is 5x6 inches

Myelodactylus fletcheri, crinoid fossil C016 / 4917
Myelodactylus fletcheri, crinoid fossil. Crinoids are marine organisms, most of which have long stalks anchored to the seabed, with five or more feathery arms radiating from a central disc

Protaxocrinus, crinoid fossil C016 / 4918
Protaxocrinus tuberculatus, crinoid fossil. Crinoids are marine organisms, most of which have long stalks anchored to the seabed, with five or more feathery arms radiating from a central disc

Rock concretions and minerals C016 / 4850
Rock concretions and minerals. Clockwise from upper left: septarian nodule, fractured flint nodule, fractured pyrite nodule and a selenite desert rose

Lonsdaleia, coral fossil C016 / 4841
Lonsdaleia, coral fossil. Corals comprise a soft bodied animal called a polyp. Each polyp inhabits a calcareous skeleton called a corallum. This specimen dates from the Carboniferous

Acheulean hand axe C016 / 4837
Acheulean hand axe. Flint hand axe from the Acheulean culture, with a rounded spall (flake) pot-lid split off from a larger rock by frost action

Shale C013 / 6651
Shale is a dense sedimentary rock that forms when layers of mud are buried and compressed. Mud is largely composed of clay particles

Sandstone C013 / 6649
Sandstone, Sandstone is a sedimentary rock formed by loose grains of quartz compacted and cemented together

Puddingstone C013 / 6650
Puddingstone is a conglomerate sedimentary rock composed of rounded pebbles cemented together by a younger matrix of rock. Despite a superficial similarity to concrete, is entirely natural

Polarised LM of thin section of greywacke C013 / 4589
Polarised light micrograph of a thin section of Greywacke, a sedimentary rock composed of variously sized fragments in a generally fine matrix

Polarised LM of thin section of greywacke C013 / 4590
Polarised light micrograph of a thin section of Greywacke, a sedimentary rock composed of variously sized fragments in a generally fine matrix

Ganister, polarised light micrograph C013 / 4794
Polarised light micrograph of a thin section of ganister.A ganister is hard, fine-grained quartzose sandstone, or orthoquartzite

Diamond in pebble
A solitary diamond in conglomerate, from Golconda, India

Limestone lamp, Magdalenian, from France
Limestone lamp of Magdalenian age, 11, 000 - 18, 000 years old (Upper Palaeolithic) from La Mouthe, France

Eastmanosteus, Gogo fish
The Gogo fish, Eastmanosteus, was one of the first ever fossils extracted using acid

Aurignacian tools
A bone point, probably a spearhead and a flint end-scraper tool of Aurignacian age, 30, 000 - 34, 000 years old from France

Limestone lamp with ibex carved on back
Limestone lamp with ibex carving, of Magdalenian age, 11, 000 - 18, 000 years old (Upper Palaeolithic) from La Mouthe, France

Venus in limestone
Figure of a woman, or Venus, engraved in limestone, Gravettian age 22, 000 - 30, 000 years old (Upper Palaeolithic) from Abri Pataud in France. Created by Cro-Magnon man

Fossilised Mesturus verrucosus
Fossilised fish from upper Jurassic lithographic limestone, Eichstadt, Germany. 150 million years ago

Copal
Stalactite of New Zealand copal locally known as kauri gum. Copal is the mid-stage between resin and amber. Figure 8 from Amber The Natural Time Capsule

Oolitic limestone
An oolitic limstone originating from Rutland, U.K showing the perfectly rounded ooliths of which it is composed. Formed in shallow, agitated marine conditions, and only in warm climates

Cephalaspid, fishes
Block of Old Red Sandstone from the Lower Devonian period about 400 million years ago containing the skeletons of cephalaspid fishes

Hand-axes, blades & harpoon
The two axe-heads on the left are from the Middle Palaeolithic about 40, 000 BC; the three specimens on the right are from the Upper Palaeolithic abot 20, 000 BC (Agfa Film)

Chrysobotris, fossil beetle
An early Cretaceous fossil beetle from the Lithographic Limestone, Lerida, Spain

Agate
This polished agate specimen from Saxony is called Breccia Sanguigna. This brecciated agate comprises mainly of irregular sized fragments of cryptocrystalline quartz, set in a finer matrix

Junction of granite and limestone
Fig 88 from Principles of Geology, being an attempt to explain the former changes of the Earths surface. Vol. 3 1832-33 by Charles Lyell (1797-1875)

Breccia Coralina Rosa, marble
Polished specimen of the metamorphic rock marble from a ruin of ancient Rome

Flint artifact (Goughs Cave)
Creswellian flint artifacts excavated from Goughs Cave, Cheddar, Somerset dated at around 14, 000 to 12, 000 years old, late upper palaeolithic (Creswellian)

Concretions with ammonites (saligrams)

Coal mine at Sandy Point, Strait of Magellan
A photograph taken during the voyage of H.M.S. Challenger (1872-1876) funded by the British Government for scientific purposes

Metaldetes
A small block of limestone, 5 cm across, from the Cambrian of South Australia, containing sectioned specimens of the archaeocyathan sponge Metaldetes

Marble, Breccia Coallina Rosa
Specimen number BM 82645, from the Ruins of Ancient Rome

Marble, Breccia Sanguigna
Specimen number BM 50289, from Saxony

Didymograptus, fossil graptolite
The two tuning-fork graptolite on this piece of Welsh Ordovician shale belong to the genus Didymograptus and have branches some some 5 cm in length with sawtooth-like thecae

Calcareous Sandstone, Bermuda 1873
A photograph taken during the voyage of H.M.S. Challenger (1872-1876), funded by the British Government for scientific purposes

Belemnitella minor, belemnites
Natural History Museum specimens of belemnites or thunderbolts from the Paramoudra Chalk of Norfolk

Fossil prawn
Specimen of a fossilied prawn preserved in the Solnhofen Pink Limestone, Germany

The Abee EH4 enstatite chondrite
Abee fell in Canada in 1953. The cut surface clearly shows the metal-rich and brecciated texture of Abee

Tylocidaris clavigera (Konig), sea-urchin
This sea-urchin has highly characteristic club-like spines and is 80-83m yrs old. Specimen originates from the Upper Cretaceous Upper Chalk, S. England

Banded iron specimen
This banded iron specimen measures 7 cm thick and is about 3, 000 million years old, from the Murchison Goldfield, Western Australia

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"Unveiling the Mysteries of Sedimentary Rock: A Journey through Time and Space" In October 2019, within the Gale Crater landscape on Mars (C014/4934), scientists made a groundbreaking discovery. Plate 4, fig 2 Puddingstone from Mineralienbuch revealed intricate layers of sedimentary rock, offering glimpses into the planet's geological history. As we delve deeper into this captivating subject, let us explore its fascinating features. One remarkable find within these ancient rocks is Calymene blumenbachii brongniart, a trilobite fossil that provides valuable insights into prehistoric life forms. These remnants transport us back to a time when these creatures roamed Earth millions of years ago. Moving closer to home, Oolitic limestone captures our attention with its unique texture resembling fish eggs or small spheres. This distinctive formation can be found in various locations worldwide – even on Mars (C014/4935) in the Gale Crater landscape. Venturing further across continents brings us to Spider Rock in Arizona, USA. Rising majestically against the sky, this towering sandstone monolith showcases nature's artistic prowess carved by wind and water over countless millennia. Meanwhile, Micraster coranguinum (Leske), commonly known as shepherds crown echinoid, graces our exploration with its presence. Fossilized remains like these serve as silent storytellers of Earth's past inhabitants and their evolutionary journey. Bryce Canyon National Park in Utah offers breathtaking sights such as the Famous Natural Bridge basking under sunny skies. Carved by erosive forces over eons, this natural wonder stands tall amidst stunning red rock formations that leave visitors awestruck. Nature never ceases to amaze; at Sunset Point in Bryce Canyon National Park lies an enchanting sight – a tree growing tenaciously upon solid rock. Its resilience serves as a reminder of life's ability to thrive even in the harshest conditions.