Core samples are cylindrical sections of a naturally-occurring substance, such as sediment or rock, that are obtained by drilling with a special drill and brought to the surface for examination. Core samples are used in underground or undersea exploration and prospecting. . The hole made for the core sample is called the "core hole"1. Colour photocopy of original photo. Four separate images of core samples. Core samples are placed side by side, lengthwise. western mining corporation, goldmining, kangaroo flat gold mine, rock samples, core samples, exploration

The core samples in the display cabinet were obtained from the various sites at which drilling into the rock surface was carried out (under the control of design and structural engineers of the SEC Kiewa Hydro Scheme - late 1940's). This function was a precursor to the decision where to locate, in this case, the McKay Creek Power Station. The information gained by structural engineers from the core samples would be used also for the placements of underground tunnels entry and exit points and the overall effective size of the generator plant. This would have included drill and blast techniques (rock characteristics play an import part of explosion control), requirements for support structures and reinforcing cement/steel forms. The use and replenishment of diamond drill bits(the strongest available, see KVHS 0280) was dependent on the "type" of rock found (harder rock required greater numbers of drill bits). Support beams for reinforced ceilings and floors was also a necessity.These rock core samples are very significant in the formulation and placement of the underground Power Stations and their maze of tunnels (in and out) for a successful implementation of the Hydro Scheme. The amount of pre-planning and engineering studies required for such a large scheme must be undertaken to ensure that a "white elephant" was not the result.There are nine columns of rock cores, each 30mm in diameter, set in a wooden display rack. A clear plastic (slide out) protective panel is installed to the front section. Within each column are block details of the depth from which that section was brought from. See KVHS for the appropriate sketch details.Depth levels (retrieved from) are shown for each section on wooden Blocks: 1st Block: "7'10" (seven feet, ten inches), 2nd Block:"9'4" (nine feet, four inches), 3rd Block: "19'3" (nineteen feet, three inches), 4th Block: "24'2" (twenty four feet, two inches), 5th Block: "25'7"( twenty five feet, seven inches) and last block: "30' (thirty feet)"alternate energy supplies, alpine feasibility studies temperature, rainfall, sec, kiewa hydro scheme, electricity

Section of core sample taken from Eastland Stage 5 Nov 2014 - Donated by Terry Ahern, obtained through Probuild building contractorsSection of core sample taken from Eastland Stage 5 November 2014 +Additional Keywords: Eastland / Ahern, Terry / Probuild

8390.1 - Drill core sample.

8391.1 - Drill core sample.

8392.1 - Drill core sample

8393.1 - Drill core sample.

8394.1 - Drill core sample

8395.1 - Drill core sample

8389.1 - Drill core sample, seems to be weathered.

This framed sketch details, in graphic form, where the core samples in the display cabinet were removed. The drilling was a precursor to the decision where to locate, in this case, the McKay Creek Power Station. The information gained by structural engineers from the core samples would be used also for the placements of underground tunnels entry and exit points and the overall effective size of the plant. This would have included drill and blast techniques(rock characteristics play an import part of explosion control), requirements for support structures and reinforcing cement/steel forms. The use and replenishment of diamond drill bits(the strongest available, see KVHS 0280) was dependent on the "type" of rock found. Support beams for reinforced ceilings and floors was also a necessity.The visual derails of where the rock core samples were removed is very significant in the formulation and placement of the underground Power Stations and their maze of tunnels(in and out) for a successful implementation of the Hydro Scheme. The amount of pre-planning and scientific studies required for such a large scheme must be undertaken to ensure that a "white elephant" was not the result.This framed and glass front rock core display sketch has type written information of the rock samples displayed in KVHS 0279 (A). It has a softwood stained and glossed frame with a fixed(nailed) back board and a brass fixture for mounting onto a wall.The paper and type are slighted faded (sunlight affected). The sign heading "ROCK CORE SAMPLES RECOVERED FROM DIAMOND DRILLED BORE" underneath this "BORE NO: 883" and below this "LOCATION: McKAY CREEK POWER STATION AREA" to the left a sketch incorporating the ground level point "GROUND LEVEL R.L.3493", and the core depth point "CORE DEPTH 40' 7". In between and representing( in visual form) the core location areain question.alternate energy supplies, alpine feasibility studies temperature, rainfall, sec, kiewa hydro scheme, electricity

This hollow core bit has hard cutting inserts for drilling into rock. It was used to drill and recover 50mm diameter (most common size) rock cores. The rock cores were assessed by geologists and engineers to provide information for design of structures such as tunnels, dams and underground power stations (eg. McKay Creek Power Station, West Kiewa Power Station). This type of bit was also used where damage to the surrounding rock had to be minimised. The Diamond Drill Bit,used in the early 1900's, when it was primarily used as a method of sampling rock for ore deposits and oil exploration resulting in a "coring" of rock. The use of "coring" to obtained samples for the SEC Kiewa Hydro Electricity Scheme(1920's onward) was to analyse the core to obtain temperature and rainfall patterns shown by the levels of layered solidified soil(rock). This diamond drill would have been used in the early 1900's to provide a sub strata map of temperature and water patterns (over an long period of time). This was a pre requisite to any decisions about the viability of the region to provide the water needed for a successful hydro electricity scheme.This diamond drill for core sampling was at the forefront of the analysis whether to construct a hydro electrical facility in the Kiewa Valley and the adjoining alpine region. The rock core samples produced were assessed by geologists and structural engineers. It was only after extensive core drilling covering the region that solid scientific evidence could be provided to start the "SEC Vic Hydro Electricity Scheme" within its current boundaries.This "diamond" drill bit has eight "teeth" at its cutting edge. The drill creates an 55mm hole in extremely hard rock material to obtain 50mm core samples.. Three quarters down the shank it has thread screw channels to attach the bit to the drill pipe. The coring pipe attaches via screwing it onto this bit. Core samples are the main objective of this tool.alternate energy supplies, alpine feasibility studies temperature, rainfall, sec, kiewa hydro electric scheme, electricity

An increment borer is a specialised tool to extract a core sample of wood tissue from a living tree. The tool consists of a handle, an auger bit and a small, half circular metal tray (the core extractor) that fits inside the auger bit. The core sample can be used to count the rings, to reveal the age of the tree and its growth rate.Increment borer. The central core is stuck. AGN Mattison - Sweden #4333forest measurement, forests commission victoria (fcv)

Differing gauges of transmission line was/is used in the Kiewa Hydro Electric Scheme. Some carried 330KV, 220KV, 66KV (Mount Beauty to Bright) and (Clover to Mount Beauty) and 22KV. All the cables have a core of steel for strength and an aluminium outer layer for transmission. Examples include 66KV copper cable, copper earth wire from the towers, copper cable found along the aqueducts for telemetering and copper earth wire. The 24 Volt Communication cables were/are used for linking different sites on remote SEC equipment.The State Electricity Commission of Victoria constructed the Kiewa Hydro Electric Scheme during the late 1930's to 1960's. A wooden board with samples of differing gauges of transmission cables used for the transmission of power and 24 volt communication cables used for communication linking different sites on remote S.E.C. equipment. The cables No.s 1 to 9 have a core of steel for strength and an aluminium outer layer for transmission. The copper cables No.s 10 - 14 are used for earthing and are in the ground as copper doesn't rust or corrode (steel does). Copper is three times heavier (dense) than aluminium. Each of the outside aluminium wires are wound in the opposite direction so that when the cable is stretched under load, they tighten.state electricity commission of victoria. kiewa hydro electric scheme. cable. communication. transmission. telemetering. power. electricity.

Leather bound ledger with hand written details on donations to the Ballarat School of Mines Museum or the Ballarat School of Mines Library. The Ledger was made by J. McHutchison, Bookbinder, paper ruler and Account Book Manufacturer. 267. 07 July 1880 - John Lynch Junior - Smythesdale - Cast of "Golden Age" nugget found at Browns by Co-operative Party - 12 men. Weight 75 oz 12 dwts 12 grs 294. 24 June 1880 - W.H. Shaw - Ballarat - 94 numbers of 'The Engineer'. 295. 28 June 1880 - Rivett Henry Bland - Clunes - Specimen of water pipe from the Port Phillip Consols Mine encrusted with Carbonates of lime and magnesia and sulphate of lime with earthy matter. 418. 17 June 1881 - F. Ratte - Sydney - Catalogue of Rocks, minerals, etc of New Caledonia. 462. 28 September 1881 - Dr Bunce - Ballarat - Concretionary Basalt with Car. Lime and Magnesia. 465. 06 September 1881 - J.J. Sleep (Chairman of the Board) per favor of E.W. Spain, Esq, Manr - Ballarat - Diamond drill core from "Carisbrook Freehold Estate" - cut at a depth of 150 feet. Dedrites from Munster Gully ... 517. 20 January 1882 - William Lester - Ballarat - The Agricultural Teacher 549. 24 March 1882 - C.E. Grainger Manager Ballarat Woollen Mills - Ballarat - Samples of dyed and raw wool and dye material. 600. 04 July 1882 - Henry Sutton - Ballarat - 13th Annual Report of the Aeronautical Society of Great Britain. 1222. 31 October 1884 - Trooper Dowling - Miner's Rest - Owl 1223. 04 November 1884 - W. McKeenan - 3, Adair St, Ballarat - Flying Squirrel. 1259. 16 January 1885 - A.A. Buley - Ballarat - Prospective of Grenville College 1885 1428. 06 October 1885 - Ballarat - Collection of mineral specimens from Silverton (Collected by Mr James Murray). 1442. 20 October 1885 - Ballarat - Specimen of fossil fruits collected by Haddon by Charles Brown. 1682. 28 February 1887 - James Lamb - Ballarat - Copy of the Ballarat Times Newspaper of 3rd December 1854, framed and protected on both sides with glass. 1730. 23 May 1887 - Bella Guerin - Ballarat - Copy of the Victorian Review No 74 December 1885 4786. 27 March 1894 - James Oddie - Ballarat - 3 mineral specimens 4835. 01 August 1896 - P.V> Barnard - Ballarat - {ortion of Mining truck wheel altered to oxide of iron found in the old workings of the Golden Gate Mine at a depth of 200 feet. (4235 is last entry)ballarat school of mines, ballarat school of mines museum, donations, henry sutton, bella guerin

1330.1 - Approx 110m long section of a compressor armature end binding from the compressor of tram No. 40. The binding section consists of string which has been impregnated with insulating varnish. Located between the end of the armature and the commutator and retains the mica core. Small pieces of mica on the inside. Has a circular shape inherent from its use. - Not numbered. 1330.2 - approx. 25mm long section strip of red silicone tape with glass fibre reinforcement - 25mm wide with a plastic separation strip. Supplied by XLNT Enterprises - see fax on W.A.Doubleday files dated 5/1/2000. 1330.3 - as above, but two sections of this tape joined together as a sample. 1330.2 used to wrap the armature - two layers applied cut to be about 22mm wide instead of 25mm - repair done on 3/3/2000. See W.A. Doubleday personal btm files for period and car record book.armatures, repairs, materials, insulation

Core from an early drilling (for oil, or water?)

Section of worn cable tram wire rope. One of the two ferrules has been engraved with "243 Weeks 341591 Miles" and the other "ANTD 12 Weeks" - "ANTD" is thought to be an abbreviation for anticipated. On this basis, the cable rope lasted 20 times its expected life! Demonstrates a worn cable tram wire rope that has been sampled and its use recorded.Section of worn Melbourne cable tram wire rope with engraved retaining brass ferrules on each end consisting of seven wound (12 wires) around a central fibre core.See contexttramways, cable trams, cable ropes, cables, mmtb