When the ground depresses down at the point of a volcanic vent after a volcano’s magma chamber has been emptied it is known as a caldera, and not a volcano crater. (https://www.universetoday.com/31143/volcano-crater/, accessed 04 March 2019) A caldera is a volcanic feature formed by the collapse of a volcano into itself, making it a large, special form of volcanic crater. A caldera collapse is usually triggered by the emptying of the magma chamber beneath the volcano, as the result of a large volcanic eruption.(https://www.sciencedaily.com/terms/caldera.htm)A volcanic vent, or depression on one side of Mount Franklin. mount franklin, volcano, volcanic vent, lalgambook

Smeaton Hill was the name of the property first settled by squatter Captain John Hepburn and Elizabeth Hepburn.Five landscape photographs of the seven volcanic hills around Smeaton.smeaton, kooroocheang, john hepburn, john hepburn, elizabeth hepburn, volcano, volcanic

Tower Hill is a volcanic formation believed to have erupted about 32,000 years ago. Its formation is known as a "nested maar" and it is the largest example of its type in Victoria. During formation, molten lava pushed its way up through the Earth’s crust and encountered a layer of water-bearing rock. Violent explosions followed creating a shallow crater which later filled with water to form the lake. Further eruptions occurred in the centre of this crater, creating the islands and cone shaped hills. In 1892 Tower Hill became Victoria’s first National Park. In 1961, Tower Hill became a State Game Reserve under the then Fisheries and Wildlife Department and a major re-vegetation program began. (https://www.towerhill.org.au/index.php/about-reserve/history, accessed 23 December 2019)Colour photographs of a lake in a volcanic crater at Tower Hill, Victoria. volcano, crater, lake, tower hill

Kenneth JACK AM MBE RWS, (5 October 1924 – 10 June 2006) Australian watercolour artist Kenneth Jack who specialised in painting the images of an almost forgotten outback life; old mine workings, abandoned ghost towns, decaying farm buildings. He became a professional painter at the age of 39 after giving up his job as senior instructor at the Caulfield Institute of Technology. In 1977 he was elected to The Royal Watercolour Society and in 1982 was awarded the MBE, and the Order of Australia (AM) followed in 1987. Framed three block lino print showing the volcanic plains of Victoria around Stony Rises. It is Number 6 in the Volcanic Plains of Victoria series. Donated through the Australian Gifts Programme by Katherine Littlewood.31/40artwork, artist, kenneth jack, printmaking, volcano, mt porndon, mount porndon, linocuts

Robin Boyd was appointed Exhibits Architect for the Australian Pavilion at Expo ‘70 in Osaka and travelled to Osaka several times in 1969-1970. Boyd designed the innovative Space Tube, which had over 25 exhibition boxes, projecting from it. Amongst the topics covered were Australian scientific innovation (including brain research, immunology, Antarctic research, Snowy Mountains Hydro-Electric Power Scheme, rainmaking, and the night sky), Australian sport, house interiors, car manufacturing, Australian music and art, and Japanese-Australian relations.Colour slide in a mount. Volcanic activity, Expo '70, Osaka, JapanExpo'70 / Volcanic Activity / 30 (Handwritten)expo 70, osaka, robin boyd, slide

tower hill, volcano, volcanic ash, volcanic ash layers, geology, koroit

Framed six colour serigraph showing a volcano surrounded by water. Donated through the Australian Gifts Programme by Katherine Littlewood. Signed lrs "Kenneth Jack" Edition: 25/30kenneth jack, printmaking, volcano

Framed four plate lithograph depicitng Nt Eccles and Crater Lake on the Victorian cvolcanic plains. Donated through the Australian Gifts Programme by Katherine Littlewood.Edition 23/42kenneth jack, printmaking, mt eccles, volcano, lithograph

A volcanic hill as seen from Queen Street, Smeaton, Victoriasmeaton, volcano, volcanic

15cm x 10cm coloured photograph of the cutting at 91 Sydney Street, Melbourne Street at the top of the cutting which exposed the volcanic rock. Now is the site of the car wash and KFC.Written on the back: Exposed volcanic rock 91 Sydney St Kilmoreconstruction

"This sculpture was inspired by the figures carved from the hillsides of the chalk downs in Britain. I wanted to produce a work that would become part of the landscape and was originally derived from the landscape. It is a white-faced heron which is a native water bird commonly found along the Merri Creek. The bird is looking upstream to the source of the creek and the other artworks along the creek."Made of scoria (a red-brown volcanic stone) laid in trenches, 'Earthwork Heron' was commissioned by the Merri Creek Management Committee as part of the Merri Creek Arts Plan and was donated to the City of Yarra in August 1997.Contemporary, LandartOutline of a Heron bird imprinted on a rolling hill in the landscape with volcanic stone (scoria). Accompanying plaque reads: 'This sculpture was inspired by the figures in the British Chalk Hills. I wanted Earthwork Heron to be derived from and become part of the landscape. The white feathered Heron a common native water bird is looking upstream to the creek's source." wildlife, landscape, ephemeral, landart, environment, site-specific

This particular geological specimen was found in Mount Franklin or Lalgambook in Djadjawurrung, located between Daylesford and Newstead, approximately ninety minutes drive from Melbourne. The mountain is an example of a breached scoria cone (a steep conical hill of loose pyroclastic fragments) which was created by a volcanic eruption about 470,000 years ago, a date which may indicate the age of this geological specimen. The volcanic eruptions of Mount Franklin were most likely witnessed by members of the Dja Dja Wurrung Aboriginal tribe, who referred to this country as the 'smoking grounds'. Mount Franklin and the surrounding area appears to have been a place of considerable religious significance to Aboriginal people, there is evidence which indicates that frequent large ceremonial gatherings took place in the area. Basalt is the most common rock on Earth’s surface, more than 90% of all volcanic rock on Earth is basalt. Basalt is an aphanitic extrusive igneous rock formed from the rapid cooling of low-viscosity lava exposed at or very near the surface of a rocky planet or moon. Specimens are black in colour and weather to dark green or brown. Basalt is rich in iron and magnesium and is mainly composed of olivine, pyroxene, and plagioclase. Olivine is the name of a group of rock-forming silicate minerals with compositions ranging between Mg2SiO4 and Fe2SiO4. Unlike other minerals, Olivine has a very high crystallisation temperature which makes it the first of the minerals to crystallise from magma. As magma cools, the crystals begin to form and settle on the bottom of the lava and form basalts that are abnormally enriched in olivine in the lower part of lava flows. According to H. M. King (on geology.com) "Olivine is thought to be an important mineral in Earth's mantle. Its presence as a mantle mineral has been inferred by a change in the behaviour of seismic waves as they cross the boundary between Earth's crust and mantle". Lava from Mount Franklin and other volcanoes in the area filled valleys and buried the gold bearing streams that became the renowned ‘deep leads’ of the gold mining era. In 1852, as part of the Victorian gold rush, gold was discovered in the immediate area, this gold was created by lava flows during the Newer Volcanic period, which were mined intensively during the nineteenth century. Around 1865 the presence of a deep lead in Mount Franklin was established. Deep lead mining was initially unsuccessful, and it was not until the late 1870s that the Franklinford Gold Mining Company mined at Mount Franklin on a significant scale. A few years later the Mount Franklin Estate Gold Mining Company also struck gold, followed by the Shakespeare and Great Western companies in the mid-1880s. By the late 1880s, however, deep lead mining had ceased in the area. Soon after gold was discovered in 1851, Victoria’s Governor La Trobe wrote to the Colonial Office in London, urging ‘the propriety of selecting and appointing as Mineral Surveyor for this Colony a gentleman possessed of the requisite qualifications and acquaintance with geological science and phenomena’. Alfred Selwyn was appointed geological surveyor in Australia in 1852 which began the Geological Survey of Victoria. In 1853-69 the Geological Survey issued under Selwyn's direction sixty-one geological maps and numerous reports; they were of such high standard that a writer in the Quarterly Journal of the Geological Society of London bracketed the survey with that of the United States of America as the best in the world. During his years spent in Australia, Selwyn collected numerous significant geological specimens, examples of which are held in collections such as the Burke Museum.This geological specimen is an example of basalt and olivine which shows the volcanic lava activity and geographical specific nature of Mt Franklin as a significant volcanic site. According to Agriculture Victoria 'The crater is one of the deepest in the Central Highlands area. It is a major megacryst site with some of the largest known Victorian examples of megacrysts of augite and an orthoclase. The small parasitic mound of Lady Franklin on the western flanks adds to the geological interest of the site'. This specimen also highlights the locality as a significant place for both indigenous activity and Victorian gold rush era mining practices. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.An angular, solid hand-sized piece of grey volcanic Basalt with green/brown Olivine phenocrysts along one flat edge.Olivine in basalt / - label is probably / correct. / C. Willman / 15/4/21burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, basalt, igneous rock, igneous-volcanic, volcanic geology, volcanic, olivine, olivine specimen, basaltoid

This specimen was recovered from the Nigretta Falls (previously named the Upper Wannon Falls), Victoria. The falls are fed by the Wannon River that has its head waters in the Grampians mountains. Approx. 10km upstream of the Wannon Falls, Nigretta is a multi-channel segmented cascade of smaller drops and bounces guided by patterns of joints in a much older (Devonian) rhyolitic volcanic rock. Both the Wannon and Nigretta Falls are iconic landscape features, entrenched in the history and identity of the region. These falls are particularly rare as they are the product of volcanic activity, which is unique in the context of the Volcanic Plain of Victoria. Waterfalls of this capacity are generally associated with the Uplands areas of Victoria, rather than the edges of the Volcanic Plain. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. A solid, dark grey mineral specimen with pale terracotta coloured inclusions. Rhyodacite is a volcanic rock intermediate in composition between dacite and rhyolite. Rhyodacites form from rapid cooling of lava relatively rich in silica and low in alkali metal oxides.GEOLOGICAL SURVEY / R / S 55 FELSTONE PORPHYburke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, porphyritic rhyodacite, lava, nigretta falls, upper wannon falls, dacite, rhyolite, volcanic geology

Tower Hill is a volcanic formation believed to have erupted about 32,000 years ago. Its formation is known as a "nested maar" and it is the largest example of its type in Victoria. During formation, molten lava pushed its way up through the Earth’s crust and encountered a layer of water-bearing rock. Violent explosions followed creating a shallow crater which later filled with water to form the lake. Further eruptions occurred in the centre of this crater, creating the islands and cone shaped hills. In 1892 Tower Hill became Victoria’s first National Park. In 1961, Tower Hill became a State Game Reserve under the then Fisheries and Wildlife Department and a major re-vegetation program began. (https://www.towerhill.org.au/index.php/about-reserve/history, accessed 23 December 2019)A number of photographs taken at Tower Hill, including the lakes, volcanic ash layer, and koala.tower hill, ash layer, volcano

15cm x 10cm coloured photograph of the cutting at 91 Sydney Street, Melbourne Street at the top of the cutting which exposed the volcanic rock. Now is the site of the car wash and KFC.written on the back of .1: cutting @ 91 Sydney St Kilmore Melbourne St 2 top of cutting late July 2016 Written on the back .2: Exposed volcanic rock look south west 91 Sydney St Kilmore late July 2016construction

Neville Mirvane BUNNING (1902-1990) During World War Two he served with the RAAF. He was an Art Teacher at the Ballarat School of Mines from 05 February 1946 to 22 September 1964. Neville Bunning formed the Ballarat Artist's Society (later the Ballarat Society of Artists), a group that sponsored art and which invited modernist artists to speak to students and to the public of Ballarat. He also wrote a weekly column in the Ballarat Courier. Bunning produced a bust of Australian Prime Minister, The Right Honourable J.A. Lyons from Tasmania, who died in office. Bunning died in Subiaco, Western Australia on 29 April 1990. This item is part of the Federation University Art Collection. The Art Collection features over 1000 works and was listed as a 'Ballarat Treasure' in 2007.Small framed painting of a volcanic landscape.noneart, artwork, bunning, neville bunning, available

Colour photographs of the volcanic ash layers at Tower Hill.tower hill, volcanic ash, ash layers

An extinct volcanic mountain known as Mount Franklin from the Franklinford Cemetery. . mount franklin, volcano, franklinford, franklinford cemetery, lalgambook

An extinct volcanic mountain known as Mount Franklin from Smeaton, Victoriamount franklin, volcano, smeaton, lalgambook

Olivine is mostly found on the Earth's surface in igneous rocks that are dark-coloured. It is common at divergent plate boundaries and at warm spots, such as volcanic areas. It crystalises and forms during the cooling of magma. Olivine is used in refractory sand, bricks, and gemstones. Olivine has been found on a number of meteorites, which might have originated from large asteroids or the mantle of a now-destroyed planet. This olivine crystal is thought to originate from Mount Noorat, with speculation that it could have originated from Mount Shadwell. Mount Noorat is a dormant volcano cone located in the Newer Volcanics Province of Victoria. Mount Noorat belongs to the Kirrae Wuurong people, who used the Mount as a place for meetings and gatherings prior to European settlement. Contact was first made between European settlers and the Indigenous people in 1841. The Mount has mostly been used for cattle and sheep grazing. Mount Shadwell is a well-known source of olivine and is the highest of a gathering of volcanic cones. The New Volcanic Province is located in South East Australia and covers 15000 square kilometres. It contains 400 explosive vents and small shield volcanoes. The last eruption is thought to have occurred 5000 years ago at Mount Gambier and Mount Schank. This olivine crystal has been identified as a volcanic bomb, which is a molten rock which was pushed out and ejected into the air when a volcano reupts. A rock needs to be larger than 65 mm in diameter to be classified as a volcanic bomb. This olivine volcanic bomb and its locality is historically and socially significant. The olivine was found in the Newer Volcanic Province, an area which contains over 400 dormant volcanoes. This olivine is one part of a volcanic bomb, which would have ejected when magma erupted out of a volcano. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A solid iron-magnesium silicate mineral with shades of green and brownburke museum, beechworth, geological, geological specimen, olivine, igneous rock, volcanic, gemstones, volcanic bomb, meteorites, asteroids, plantes, mount noorat, mount shadwell, indigenous, kirrae wuurong people, newer volcanics province, victoria, european settlement, eruption

The Convent Gallery was formerly Holy Cross Convent, and incorporates the Gold Commissioners house. An extinct volcanic mountain is seen in the distance. The slate roof of the former Holy Cross Convent in Daylesford is in the foreground. holy cross convent, presentation convent, convent gallery daylesford, slate roof, mount franklin, volcano, lalgambook

The planes of the orebody at South Prince Lyell, including felsic volcanics, silicified One, shale lenses and owen conglomerate.mount lyell, tasmania, southern prince lyell, orebody, volcanics, hale lenses, owen conglomerate, magnetite alteration

Before Mt Tarawera erupted, the Pink and White Terraces at Lake Rotomahana in New Zealand’s North Island, were considered one of the wonders of the world. Tourists came to soak in the thermal hot pools and view the marble-like terraces. Due to a volcanic eruption of Mt Tarawera On June 10 1886, between 108-120 people were killed and several settlements were destroyed. It also destroyed the world-famous Pink and White Terraces. The terraces became a crater over 100 metres deep. Within 15 years it filled with water, forming a much larger new Lake Rotomahana. The chain of craters at Waimangu became the site of many new geothermal features, including Waimangu Geyser, the largest in the world, and New Zealand’s largest hot spring, Frying Pan Lake. The Burton brothers (photographers), Alfred Burton was born in 1834 in Leicester and died in 1914 in Dunedin. His brother Walter Burton was born in 1836 and died in 1880. Many of the Burton Brothers' works and original equipment were collected by Dunedin photographer and historian Hardwicke Knight, and are now housed in the Museum of New Zealand Te Papa Tongarewa in Wellington. This album was donated to the Ballarat School of Mines Museum by James Oddie in 1887. (See Cat. No. 458, No. 1720) Alfred Burton was born in 1834 at Leicester and died at Dunedun, New Zealand, in 1914. Walter Burton was born in 1836, and died in 1889. Large green album containing numerous B/W original photographs of New Zealand, especially volcanos. - Includes Pink and White Terraces (no longer in existance). Photos were taken before and after volcanic eruption. A recent inclusion is article on the terraces by Federation University's George Hook and Stephen Carey.Each photo has a caption.pink terrace, white terrace, new zealand, sumner, burton bros, rotokakahi wairoa, rotomahana crater, tikitapu bush, wanganui bridge, maori, canoe, volcano, mount tarawara, james oddie, ballarat school of mines museum, eruption, waterfall, bridge, sulphur pool, crater, mt tarawera, tikitapu lake, rananga house, wairoa, waikato, maori church wairoa, ganaru, taherepokiore, golden bay, paterson, dowling st dunedin, rocky hill, harison's cove, milford sound, tall ship, hydraulic mining, hale's arm, james oddie (donor), george hook, stephen carey, lake rotomahana

8304.1 - Curiously dark rhyolite or rhyolitic volcanic rock. Coarse-grained feldspar quartz crystals within five-grained dark groundmass.

One of two sets of stereographs donated by the O'Beirne family along with a stereoscope for viewing (Stereoscope is Registration no. 2014-51).Stereograph of two black and white images showing a man standing in front of the ruins of Pompeii.14,651. MAJESTIC RUINS OF THE CITY OF POMPEII, ITALY. Destroyed by Volcanic Eruption / of Mt. Vesuvius A.D. 79, and Excavated about 1764.stereographs

largely unknown; ultimately originated as part of series of basaltic volcanic events across victoriaClearly a fragment of a river rock- one surface is smooth and curved the others planar. Mineralogy is basalt-"bluestone"-with white veins of secondary quartz minralisation

This map shows the position of the homestead on the Narmbool Pre-emptive Right, volcanic craters, stock reserve, quarry and geological eras,Geological map showing Narmbool and part of Cargerie in the County of Grant in five colours, predominantly pink.narmbool, cargerie, narmbool pre-emptive right, williamson's creek, leigh river, green hill, collyer's hill, volcano, crater, krause, ferdinand krause

Boggy Creek Gorge cuts through volcanics just before it meets salty water at Nowa Nowa Arm of Lake Tyers.Colour photograph from a vantage point of the distant Boggy Creek Gorge surrounded by steep tree and scrub covered ranges. Nowa Nowa Victoriavegetation, waterways

The Tower Hill Reserve is located inside a dormant volcano, and features a lake and wetlands. It became Victoria's first national park in 1892, but by the 1930s the early settlers had cleared much of the land for grazing, cropping and quarrying. In the 1960s the bare hills and islands were revegetated based in species identified from Eugene von Guerard's painting of Tower Hill. Tower Hill was formed around 30,000 years ago in a violent volcanic eruption. The initial eruption created the outer rim of the volcano, and later smaller eruptions formed the internal hills that are evident today. The layers of volcanic ash layers include artefacts relating to indigenous communites.A series of colour digital photographs showing Tower Hill, near Port Fairy, Victoria. Tower Hill is an extinct volcano.tower hill, volcano, extinct