Extrusion Collection

Basalt bomb
Geological specimen collected by Scotts British Antarctic Expedition 1910-1913, also known as the Terra Nova expedition. It had a broad scientific programme and collected thousands of geological

Microscope image of the Pasamonte eucrite
Microscopic image of the Pasamonte eucrite showing a basaltic texture. Field of view is 2.5mm across

Picture No. 12019771
Planthopper Nymph - with waxy extrusions for camouflage on plant - Klungkung, Bali, Indonesia. Date:

INDO 20-08 549
Ricaniid Planthopper nymph - with waxy extrusions for camouflage on leaf - Klungkung, Bali, Indonesia Date: 28-Aug-20

Picture No. 12019768
Planthopper Nymph - with waxy extrusions for camouflage on plant - Klungkung, Bali, Indonesia. Date:

Aluminum continuous rain gutter machine. aluminum, aluminium, extrusion, machine
Aluminum continuous rain gutter machine

Moon rock fragment from the last Apollo space mission, Apollo 17, encased in perspex on a wooden plaque. The thumbnail-size rock is around 3.7 billion years old

Basalt columns, Real del Monte mine, Mexico
Engraving of a sketch by Alexander Humboldt, 1810 Date: 1810

Quartz-feldspar porphyry C016 / 6206
Quartz-feldspar porphyry. Geological specimen collected during Scotts British Antarctic Expedition 1910-1913 (also known as the Terra Nova expedition)

Tenorite mineral crystals C016 / 4933
Tenorite mineral crystals. Tenorite is a form of copper oxide. It is found as grey-to-black metallic crystals (in fibrous form here) as a by-product of lava flows

Quartz-feldspar porphyry
Geological specimen collected by Scotts British Antarctic Expedition 1910-1913, also known as the Terra Nova expedition. It had a broad scientific programme and collected thousands of geological

Plate XXXXIV: Lava Samples
Pl XXXXIV. Observation on the volcanoes of the two Sicilies, Naples, 1776 & 1779 compiled by Sir William Hamilton (1730-1803) while Ambassador to the Kingdom of Naples

Picture No. 11050143
Welded Tuff Mexico Date:

Woolly Beech Aphid, Phyllaphis fagi, colony on underside of young beech hedge leaves

Glasshouse mealbugs, Pseudococcus viburni, with their waxy extrusions along the leaf vein of a Bougainvillea house plant

Kenyte lava C016 / 6204
Kenyte lava. Geological specimen collected during Scotts British Antarctic Expedition 1910-1913 (also known as the Terra Nova expedition)

Basalt bomb C016 / 6209
Basalt bomb. Geological specimen collected during Scotts British Antarctic Expedition 1910-1913 (also known as the Terra Nova expedition). Basalt is a common volcanic rock

Agglomerate rock specimen C016 / 4936
Agglomerate rock specimen. Agglomerates form as coarse accumulations of fragments of volcanic rocks

Basaltic dyke, collected by Dr Benza in Neilgherries, India, c.1837. NHM specimen number: BM 649

Basalt tuff, collected by Dr Benza at a hillock just north of Napoleons Tomb, St Helena, c.1837. NHM specimen number: BM 861

Kenyte lava
Geological specimen collected by Scotts British Antarctic Expedition 1910-1913, also known as the Terra Nova expedition. It had a broad scientific programme and collected thousands of geological

Volcanic glass, Peles hair
Scanning electron microscope image of a sample of volcanic glass from Mt. Pele, produced to evaluate different types of laser in Laser Ablation Inductively Coupled Plasma Mass Spectrometry

Black basalt lava
This basalt lave has cooled quickly and gas bubbles have formed into balls of fragile, needle-sharp crystals of zeolite minerals

Surface of the early Earth
An impression by Barry Evans of what the surface of the Earth may have looked like when it was very young, and still forming

Volcanoes on the early Earth
This is an artists impression of volcanoes frequently active on the surface of early Earth

Submarine volcanic eruption
A submarine volcanic eruption may often produce a Tsunami or trigger earthquakes. One of a series (including image numbers 185 to 190) showing various forms of volcanic eruption

Tenorite is comprised of (copper oxide). It is found as grey to black metallic crystals and as a by-product of lava flows. Fibrous specimen from the Natural History Museum, London

Volcanic Activity
Block diagram showing various types of volcanic activity. One of a series of diagrams (including image numbers 185 to 190) showing volcanic activity

Igneous activity
A block diagram depicting various types of igneous activity. Fig 65 from The Story of the Earth (1977), a Geological Museum booklet

Lava-flow from Edinburgh volcano
A specimen of lava-flow that erupted from the haunch vent down the flanks of the volcano to its present resting place on Whinny Hill

Oceanic and continental crust
A cross section of the Earths surface showing the continental crust on the left and oceanic crust on the right. Beneath the surface layer lies the Basaltic layer (in green) and the Mantle (in grey)

Obsidian specimen

Agglomerate
An agglomerate is a rock formed of angular volcanic fragments. Specimen from Volcanoes 2nd edition fig 57 (top)

Plate XXXVIII: Lava curtain and royal party
Pl XXXVIII. Observation on the volcanoes of the two Sicilies, Naples, 1776 & 1779 compiled by Sir William Hamilton (1730-1803) while Ambassador to the Kingdom of Naples

Platyphysa prinsepi, freshwater snails
65 million year old freshwater snail specimens that were engulfed by lava flows. Originating from the Late Cretaceous, Nagpur, India

Krakatoa in eruption
Krakatoa during an early stage of the eruption. Plate 1 from The Eruption of Krakatoa (1888) by G. J. Symons

Devonian landscape
An impression by Bridget Kempster of the Old Red Sandstone desert of the Devonian period (417 to 354 million years ago)

Volcanic eruption
A flood basalt eruption. One of a series (including image numbers 185 to 190) showing various forms of volcanic eruption

Ebola virus, TEM
Ebola virus. Coloured transmission electron micrograph (TEM) of the extrusion (release) of an Ebola virus (red) from a host cell (green)

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"Extrusion: Unveiling the Dynamic Forces of Nature and Technology" Witness the explosive power of nature with a basalt bomb, created during a volcanic eruption. 🌋 Dive into the microscopic world with an awe-inspiring image of the Pasamonte eucrite under a microscope. 🔬 Picture No. 12019771 takes us to Mexico's Real del Monte mine, where majestic basalt columns stand tall, showcasing the wonders of extrusion. IND0 20-08 549 captures another mesmerizing moment in extrusion history - witness it for yourself. 📸 Explore outer space as we present you with a moon rock fragment, evidence on celestial bodies beyond our own planet. Journey to Portugal's Madeira Islands and marvel at Porto Santo's low-angle view of the Columnar Disjunction – nature's remarkable display through extrusion. Discover how technology harnesses the power with an aluminum continuous rain gutter machine – revolutionizing construction processes worldwide. Another glimpse into lunar geology awaits as we showcase yet another moon rock fragment – proof that extrusion is not limited to Earth alone. 9 & 10 (combined). From ancient geological formations to cutting-edge machinery, this caption encapsulates both natural wonders and technological advancements tied together by one common thread: Extrusion.