Sediment Collection

Gold with black sands in a gold pan
Gold (Au) is an elemental metal. It occurs mainly as nuggets in rocks or as seen here, as grains in alluvial deposits

Sandfly
Sandflies belong to the family Phlebotominae and are responsible of spreading sandfly fever

Gold nugget found in a dry river bed outside Potchefstroom, Wits. 120 km southwest of Johannesburg, October 1882. Approximately 68x48mm and 156g in weight

Tunga penetrans, chigoe flea
This species of flea is commonly known as a jigger, chigoe or sand-flea

Dredger in Milford Haven Harbour, Pembrokeshire, South Wales
The dredger Beaufort in Milford Haven Harbour, Pembrokeshire, South Wales, with another boat alongside. Dredging involves gathering up sediment from the sea bed and disposing of it elsewhere

Calyptrella tenuissima
Glass sponge fossil which died on the seabed 80 million years ago

Six million year old fossiliferous rocks located in Emirate of Abu Dhabi

Flea
This species of flea is commonly known as a jigger, chigoe or sand-flea

Difflugia Corona
Freshwater Testate Amoebae. Magnification x 450

The Piltdown (Skull) Gravel Pit
The site where the Pitdown specimens were claimed to have been discovered (1912-1915). Photograph believed to have been taken during the winter of 1913

Precambrian Landscape
Artists impression of a Precambrian (4, 500 to 543 million years ago) landscape, when oxygen built up in the atmosphere (about 1)

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

Sand drift overwhelming a garden, Burmuda 1873
A photograph taken during the voyage of H.M.S. Challenger (1872-1876), funded by the British Government for scientific purposes

Carex arenaria, sand sedge
Illustration from Agnes Ibbetsons sketchbook of grasses, c.1809 -1822. Volume 3. No. 35. Held in the Botany Library at the Natural History Museum, London

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

Platinum (Pt) is an elemental and a very precious metal. The most common source of platinum is from alluvial deposits. Specimen from nirjni, Tagilsk, Urals, Russia

Pilansberg from Brak legte sandflat north of Brak spruit May 1869 Sketch 13 from a collection of original sketches by Thomas Baines, (1859-1871)

Shells on a sandy beach
Washed up shells lying in tidal deposits on the sand

Grus canadensis, sandhill crane

Ruby and sapphire gravel
Ruby and sapphire fragments from gem gravels seen on a background of slate. Ruby and sapphire are both varieties of the mineral corundum (aluminium oxide)

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

Gold specimens
A variety of gold specimens held at the Natural History Museum, London. Gold is an elemental metal. It occurs mainly as nuggets in rocks and alluvial deposits

Sodalite specimen

Ammoperdix heyi, sand partridge
Sand partridge egg specimens

Diverse gold nuggets
A diverse collection of gold nuggets from river gravels near Antioqua, Colombia. Deep yellow gold is practically pure whilst the white gold is electrum, an alloy containing significant silver

The Wicklow gold nugget
The Wicklow Nugget was found in the Ballin valley stream, Co. Wicklow, Ireland in 1795. The nugget became the property of George III and weighed 682g

Stictia signata, sand wasp
Sand wasp specimen found in Bolivia. Photographed by Martin Hall

Abu Dhabi desert
The expansive desert of Abu Dhabi, Emirate of Abu Dhabi

Sinhalite
A round mixed cut of 15.5 carats. Silhalite comprises of (magnesium aluminum borate) and only known to derive from the gem gravels of Sri Lanka

Ammophila, Sand wasp and prey
A sand wasp dragging her prey, an oversized caterpillar, over the ground and back to her burrow

Meliceritites semiclausa, bryozoan
Branching colony of a fossil cyclostome bryozoan. Specimen originates from the Lower Cretaceous Faringdon Sponge Gravel, Faringdon, Oxfordshire

Ripple marks
This sedimentary rock displays fossilised ripple marks which are evidence of flowing waters

Puddingstone is a conglomerate or mixture of different, irregular sized grains and pebbles held together by a finer matrix

Excavations, Norfolk 2006
A team of anthropologists busy working on excavations revealing ancient human occupation on the Norfolk coast, 2006. Animal remains

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