Showing 73 items
matching volcanic geology
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Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Nissan backhoe digging for the broken mole
... hardened by volcanic action associated with geological fault... to 40 feet deep through rock hardened by volcanic action ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E563 N4 12 April 1980 A43 Nissan backhoe digging for the broken mole -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Finished manhole
... hardened by volcanic action associated with geological fault... through rock hardened by volcanic action associated ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E566 N15 13 May 1980 A43 The finished manhole in the gully. The tall stake is the line of the boundary of Hubbard Park. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Air drill rig
... hardened by volcanic action associated with geological fault... through rock hardened by volcanic action associated ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N18 3 March 1980 A43 Air drill rig at the start of the open cut to Debbie Place. It made 24 holes at a time as each were charged with 10 sticks of gelignite for ripple firing. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Broken mole
... hardened by volcanic action associated with geological fault... hardened by volcanic action associated with geological fault ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E565 N9 16 April 1980 A43 The broken mole back-reamer whose jamming held up the job for four weeks -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Viewing east from Debbie Place
... hardened by volcanic action associated with geological fault... to 40 feet deep through rock hardened by volcanic action ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E568 N18 13 May 1980 A43 Viewing east from ridge above Debbie Place -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � View east up the gully
... hardened by volcanic action associated with geological fault... by volcanic action associated with geological fault that occurs along ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E568 N19 13 May 1980 A43 View east up the gully, when all the work was finished -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Looking east near Debbie Place
... hardened by volcanic action associated with geological fault... hardened by volcanic action associated with geological fault ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E567 N16 13 May 1980 A43 Looking east from the ridge above Debbie Place. The finished manhole is in the gully. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � View east from Debbie Place
... hardened by volcanic action associated with geological fault... through rock hardened by volcanic action associated ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E558 N29 13 May 1980 A43 View east from Debbie Place -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Track down to creek bridge
... hardened by volcanic action associated with geological fault... to 40 feet deep through rock hardened by volcanic action ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E565 N12 13 May 1980 A43 My old track down to the bridge over the creek. The pipe line went to the right of the big tree 40-foot down. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � The new trach goes on down to Debbie Place
... hardened by volcanic action associated with geological fault... line up to 40 feet deep through rock hardened by volcanic ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E566 N13 13 May 1980 A43 The parting of the ways. My old track goes left to Burlock Avenue. The new way goes on down to Debbie Place. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Manhole behind 29 Burlock Avenue
... hardened by volcanic action associated with geological fault... rock hardened by volcanic action associated with geological ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E566 N5 13 May 1980 A43 Manhole behind 29 Burlock Avenue, 38 feet deep. Debbie place is on the far right. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � The manhole in the creek
... hardened by volcanic action associated with geological fault... line up to 40 feet deep through rock hardened by volcanic ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E563 1 April 1980 A43 The manhole in the creek, waiting until boring is finished. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Tracked drill rig
... hardened by volcanic action associated with geological fault... by volcanic action associated with geological fault that occurs along ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N16 3 March 1980 A43 Tracked drill rig on the line of trench for sewer to Debbie Place -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Air track drill rig
... hardened by volcanic action associated with geological fault... to 40 feet deep through rock hardened by volcanic action ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N19 3 March 1980 A43 Air track drill rig in position as in N18 -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Last days of the boring
... hardened by volcanic action associated with geological fault... rock hardened by volcanic action associated with geological ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N1 1 April 1980 A43 Last days of the boring. The mole had broken between the last two shafts. Dominic Di Nezza and Glen Pearson discuss further moves to release it. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Drill rig
... hardened by volcanic action associated with geological fault... to 40 feet deep through rock hardened by volcanic action ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N17 3 March 1980 A43 Powder-monkey marks out the spots for holes -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � View towards Debbie Place
... hardened by volcanic action associated with geological fault... hardened by volcanic action associated with geological fault ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N15 3 March 1980 A43 View towards Debbie Place, showing 2 swivel cranes at shafts, timber of manhole in creek, the tracked drill rig and its compressor caravan. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Boring mole pit
... hardened by volcanic action associated with geological fault... through rock hardened by volcanic action associated ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N14 3 March 1980 A43 View west behind No. 29 Burlock Avenue, showing gantry over manhole 38 feet deep. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � The work on sewer line from 29-39 Burlock Avenue
... hardened by volcanic action associated with geological fault... through rock hardened by volcanic action associated ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N11 3 March 1980 A43 The work on sewer line from 29-39 Burlock Avenue. Lundy-Clarke's place on sky-line. -
Ringwood and District Historical Society
Photograph, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood. Debbie Place from the east end
... hardened by volcanic action associated with geological fault... through rock hardened by volcanic action associated ...Part of a 43-photo record of the MMBW's engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E550 N12 Dec 1979 A43 Debbie Place from the east end -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � View from Debbie Place, preliminary sewer work
... hardened by volcanic action associated with geological fault... line up to 40 feet deep through rock hardened by volcanic ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N13 28 Feb 1980 A43 View from Debbie Place, preliminary sewer work -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Line of tunnel shafts behind 29-39 Burlock Avenue
... hardened by volcanic action associated with geological fault... line up to 40 feet deep through rock hardened by volcanic ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N10 Feb 1980 A43 Line of tunnel shafts behind 29-39 Burlock Avenue. Horizontal gantry was above the manhole in the corner of No. 29. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � First hole west of bore hole at 39 Burlock Avenue
... hardened by volcanic action associated with geological fault... line up to 40 feet deep through rock hardened by volcanic ...Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N9 Feb 1980 A43 First hole west of bore hole at 39 Burlock Avenue -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Back-hoe at pit
... to 40 feet deep through rock hardened by volcanic action... hardened by volcanic action associated with geological fault ...E560 N6 Dec 1979 A43 The back-hoe works on the beginnings of pit in 39 Burlock Avenue backyard Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Boring mole pit
... to 40 feet deep through rock hardened by volcanic action... by volcanic action associated with geological fault that occurs along ...E560 N5 Dec 1979 A43 Boring mole pit near big box tree in 39 Burlock Avenue backyard Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980. -
Ringwood and District Historical Society
Photographs, 1979-80 MMBW pipe line project at Hubbard Reserve, North Ringwood � Cover of mole pit
... to 40 feet deep through rock hardened by volcanic action... by volcanic action associated with geological fault that occurs along ...E560 N24 Jan 1980 A43 Cover of mole pit near big box tree in 39 Burlock Avenue backyard Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980. -
The Beechworth Burke Museum
Geological specimen - Feldspathic Sandstone
Feldspathic arenites are sandstones that contain less than 90% quartz, and more feldspar than unstable lithic fragments, and minor accessory minerals.Feldspathic sandstones are commonly immature or sub-mature.These sandstones occur in association with cratonic or stable shelf settings. Feldspathic sandstones are derived from granitic-type, primary crystalline, rocks. If the sandstone is dominantly plagioclase, then it is igneous in origin Sandstone features prominently in public buildings throughout Victoria. Most of the sandstone used as dimension stone in the State came from three sources: the Heatherlie quarry in the Grampians (Silurian), the Bacchus Marsh area (Permian), and the Barrabool Hills near Geelong (Cretaceous).Sandstone features prominently in public buildings throughout Victoria, making this specimen special as it shows the materials used by Victorian building companies. Sandstone can also be crushed, crushed stone is used in the construction of roadways and road structures such as bridges, and in buildings, both commercial and residential. 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 feldspar-rich sandstone, a sandstone intermediate in composition between an arkosic sandstone and a quartz sandstone, containing 10% to 25% feldspar and less than 20% matrix material of clay, sericite, and chlorite. Feldspathic arenite containing less than 90 percent of the composition of quartz. Feldspar is the main composition. Feldspathic arenite may contain fragments of unstable rock, and a little amount of other minerals such as mica and heavy minerals. Some feldspathic arenite have pink or red color because of the presence of potassium feldspar or iron oxide. There are also colored light gray to white. These sandstones are usually medium to coarse grained and can contain a high percentage of granules with angular until subangular roundness. The content of the matrix can appear as the rest up to more than 15 percent, and sorting of grains can present as moderate to poorly sorted. Feldspathic sandstones are generally immature in textural maturity. Feldspathic arenite can not be judged from the structure of the sediment. Bedding can emerge from the laminate parallel to the crossbed. Fossils may appear in the layer deposited on the sea. Feldspathic arenites usually appear on the craton or the continental shelf, which can be associated with conglomerate, quartz lithic arenite, carbonate rock, or evaporites. This sandstone may also appear on the succession of sedimentary basins deposited on an unstable or deep sea, and moving arc setting. According to Pettijohn (1963) Arkose make up about 15 percent of all sandstones. Some Arkose formed in situ when the granite and related rocks disintegrate and generate granular sediments. Most of the material feldspathic sandstones derived from primary crystalline granitic rocks, such as granite or metasomatic rocks containing abundant potassium feldspar. Mineral contained in sandstones is mostly a form of plagioclase feldspar derived from quartz diorite or volcanic rock. Feldspar contained on this sandstone comes from arid to cool climates when the chemical weathering process is reduced.sandstone, natural stone, feldspathic sandstone, burke museum, geology, geological, geological specimen -
The Beechworth Burke Museum
Geological specimen - Hyalite in Basalt
According to the 1912 Department of Mines Bulletin of the Geological Survey of Victoria, basalt covers a considerable portion of the Macedon area including Mount Macedon. Basalt is the most common form of rock underlying the earth's surface and is found in three kinds of rock forming environments: ocean divergent boundaries, oceanic hotspots, and mantle plumes and hotspots beneath continents.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 mass, geological specimen in shades of grey and white. Hyalite is a colourless variety of opal. It occurs as globular and botryoidal masses and irregular crusts in volcanic and pegmatite environments where the silica deposits from the gas phase. Basalt is dark in colour, fine-grained igneous rock composed of plagioclase and pyroxene minerals. It is commonly formed as an extrusive rock, such as lava flow. It is one of the most common forms of rock underlying the earth's surface.burke museum, geological specimen, department of mines, geological survey of victoria, basalt, mount macedon, beechworth -
The Beechworth Burke Museum
Geological specimen - Granodiorite, Unknown
This specimen was found in Harcourt, Victoria. Harcourt is a small historic gold rush town located in a valley at the foot of Mount Alexander (741 m) in the Central Highlands of Victoria. In recent times the goldrush origins of the town have been replaced by a district known for apples, cider and wine. The Traditional owners of Harcourt are The Dja Dja Wurrung people. Granodiorite is a coarse-grained intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. Granodiorite has greater than 20% quartz by volume, and between 65% and 90% of the feldspar is plagioclase. This piece is of significance due to its provenance in Harcourt, Vic. Granodiorite is commonly produced in volcanic arcs, and in mountain buildings where it emplaces as large batholiths in mountain roots. Granodiorite is the plutonic equivalent of dacite. 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.Granodiorite is a coarse-grained intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. According to the QAPF diagram, granodiorite has a greater than 20% quartz by volume, and between 65% and 90% of the feldspar is plagioclase.GRANDIORITE. / Locality: / Harcourt, Victoria / Other label: Geological survey / R S / Loc Harcourt quarries [?] Alexander / 1/4 Sheet. | 4 | Granite /granodiorite, granite, burke museum, harcourt, coarse-grained, igneous, plagioclase feldspar, orthoclase feldspar, quartz, mount alexander, the dja dja wurrung people, the traditional owners, central highlands of victoria, gold rush -
The Beechworth Burke Museum
Geological specimen - Slate (Metamorphic), Unknown
This particular specimen was found in the Moorabool Slate quarries in Victoria. The Moorabool Slate quarries was established in the 1860’s by a company of Welshmen with a crew of six who purchased land by the riverside to mine for slate. Under the promise of adding to existing recourses the crew mined the slate which was used for paving and roofing. Slate is a fine-grained, low-grade metamorphic rock that is formed by the transformation of mudstone, shale or sometimes volcanic ash under low pressure and temperatures. It dark colour is due to carbonaceous material or to finely divided iron sulphide. It is believed that Evan Rowlands and Theophilus Williams of Ballarat were the first to discover the slate veins. Slate is a one of the most common natural stones in general use. Being used as paving, flooring, roofing and more. However, its history of being mined in Australia is not common as it is considered that the best places to mine slate is Spain and parts of the United Kingdom. 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 somewhat rectangular foliated metamorphic rock composed of quartz, sericite and minerals from the chlorite group that make up the compounds of slate. The rock is dark grey almost black.Geological survey / R S / Loc Moorabool /Slate quarries / 1/4 sheet | 78 | Roofing Slate /burke museum, beechworth, geological, slate, metamorphic, slate (metamorphic), geological specimen, slate specimen, indigo shire