Geology

Mineral Titles Online MTO BC

Using this summary page you can locate Geological Maps from the MTO Online service in British Columbia to acquire Mineral Titles, Mining Claims.

Mineral Title means a claim or lease acquired and maintained under the Mineral Tenure Act and its predecessor Acts (the Mineral Act and the Placer Mining Act) and these are by far the most prevalent form of title to minerals. The only method of acquiring new mineral rights today requires the registration of a cell claim. A claim is an exploration and development tenure, and a recorded holder may convert a claim to a lease in order to carry out production mining. Information on the methods of claim and lease acquisition and maintenance may be viewed on the Mineral Titles Branch website. This guide deals with the rights and responsibilities of the surface owner and the subsurface mineral title holder where this subsurface right is granted by a mineral or placer claim or lease.

MTO British Columbia

bc_mineral_titles_online_ https://www.mtonline.gov.bc.ca/mtov/home.do

Mineral Claim – Work Requirement in BC

$5 per hectare for anniversary years 1 and 2;
$10 per hectare for anniversary years

By | 2018-04-19T17:13:37+00:00 April 19th, 2018|Categories: Geology|Comments Off on Mineral Titles Online MTO BC

Distribution of Gold and Sulfides

Lupin is located on the shores of Contwoyto Lake at lat. 65° 48’N, Long. 111° 15’W and lies about 80 kilometres south of the Arctic Circle. Since start up in 1982 the mine has produced over 2.15 million ounces of gold from 6.66 million tonnes of ore grading 10.63 gm/tonne. Total remaining reserves at 1993 year end were 5.1 million tonnes at a grade of 9.11 gm/tonne (1.65 million ounces). This is sufficient for 7 – 8 years at the present annual production rate of about 200,000 ounces. The Centre and West Zones of the deposit are open to depth.

Controls of Gold and Sulfide Distribution at Lupin NWT

Different processes have been suggested for the formation of the Lupin deposit including synsedimentary deposition of gold and sulfides, epithermal emplacement of gold, metasomatic emplacement of gold and sulfides, redistribution of gold and sulfides during metamorphism and combinations of the above. There is no unequivocal argument in the literature for any of the possibilities noted, although different authors have their own biases. The geological staff at Lupin deals with the deposit on a daily basis over long periods of time and

By | 2018-02-13T18:19:26+00:00 January 30th, 2018|Categories: Geology|Tags: |Comments Off on Distribution of Gold and Sulfides

Estimating Weak Rock Strength

Factors Controlling the Strength of Weak Rock Masses: For the purposes of this paper a weak rock mass is defined as any rock mass in which the effective shear strength parameters are less than:

  • effective cohesion, c’ = 25 psi (0.2 Mpa)
  • effective friction angle, ∅’ = 30°

using the Mohr Coulomb failure criticism. This would be equivalent to material (refer Figure 1) having a macro sample unconfined compressive strength of less than 100 psi (approx. 0.7 MPa), a strength normally associated with soil like materials.

rock-mohr-coulomb-failure-criterion

Rock masses, with such low strengths, may occur as a result of a number of independent factors as illustrated in Figure 2.

  • Weak rock material (Figure 2.(i)

Where the sole reason for a weak rock mass strength is the low strength of the rock material it is more properly classified as having a soil like strength. An appropriate classification for rock and soil, based on simple tests, from which an estimate can be made of the uniaxial compressive strength is given in Table 1 (Jennings and Robertson, 1969). Extremely weak “rocks”, or more properly materials with a soil

By | 2018-04-08T13:03:57+00:00 January 3rd, 2018|Categories: Geology, Mining|Tags: |Comments Off on Estimating Weak Rock Strength

Geocharacterization

Excluding economic factors, the physio-chemical parameters of ore deposits such as permeability and mineralogy constrain the application of ISM techniques to those ores that can be readily accessed by a suitable lixiviant and dissolved. The released metals must then be transported to the surface in solution. Most mineral deposits are geologically complex and evaluating their in situ mining potential in a quantitative or even a semi-quantitative fashion is a formidable task. It is important, however, to characterize the geology of a deposit as completely as possible because such information (particularly the microscopic characteristics) is vital to the successful engineering of an ISM operation.

Geocharacterization of the deposit should be carried out at all scales. Large scale studies such as the collection of major fracture and fault densities and orientations are used to evaluate the hydrologic properties of the deposit. Fluid infiltration and migration through fracture networks in crystalline rock can be modeled using these data (Neuman, 1986). The distribution of host-rock lithologies and ore bodies should be mapped in detail in order to evaluate ore reserves and to select proper well placement, and depth of injection. Small scale studies describe the

By | 2018-05-01T12:41:29+00:00 December 3rd, 2017|Categories: Geology|Tags: |Comments Off on Geocharacterization

Carlin Trend Geology

Stratigraphy

The stratigraphic sequence in the Carlin Trend Geological area is Lower Paleozoic marine sediments and Late Tertiary tuffaceous sediments. The Lower Paleozoic sediments consist of the Siluro-Devonian Roberts Mountains Formation, the Devonian Popovich Formation and the locally named Rodeo Creek Formation. The Rodeo Creek Formation had previously been described in the mine area as the Ordovician-Silurian Vinini Formation, which had been thrust over the Popovich Formation along the Roberts Mountains Thrust. This is now thought to be erroneous due to the lack of structural evidence for thrusting, the gradational nature of the contact between the Popovich Formation and Rodeo Creek Formation and the presence of Mid to Upper Devonian age radiolaria and conodonts in rocks above the Popovich Formation.

The Lower Paleozoic units are a transgressive sequence of carbonate shelf, slope, and basin facies that have gradational contacts. The Roberts Mountains Formation consists of carbonaceous calcareous siltstones to fine grained sandstones. It is only found in the subsurface at depths of 1,400′ to 1,500′ in the extreme northern part of the mine area. The Popovich Formation can best be described as a sequence of dirty, limestone. It occurs at

By | 2018-04-30T15:47:04+00:00 November 30th, 2017|Categories: Geology|Tags: |Comments Off on Carlin Trend Geology

Diatomite Deposit Formation

Worldwide, diatomites occur within Tertiary to Recent lacustrine and marine sediment facies (see Table 1). Geologically, the oldest marine and lacustrine diatoms predate the effusive blooms of the post Oligocene depositional period, and are respectively found within Cretaceous and late Eocene sediments. In the U.S., marine species are found in rocks as old as the California’s Cretaceous Moreno Shales. The oldest non-marine diatoms observed in the U.S. are found as a well developed assemblage within late Eocene sediments of Wyoming.

Deposits of diatomite reflect stability of environmental and depositional conditions as well as optimum preservation environment. While depositional rates vary, typical varve thicknesses suggest yearly accumulations of no more than several millimeters of compacted sediment. Strata of significant thickness and high purity, therefore, indicate prolonged environmental conditions that favored high diatom productivity and that were free of continuous and significant elastic contribution or chemical precipitation. Geological preservation of the soft sediments requires protection from erosion, such as by overlying volcanics, and it also demands that they are not subjected to geological conditions which promote dissolution or diagenetic alteration to chert, porcelanite or quartz such as deep burial, exposure to high

By | 2018-05-01T15:22:36+00:00 November 28th, 2017|Categories: Geology|Tags: |Comments Off on Diatomite Deposit Formation

Shaft-Sinking for Gold Placer Prospecting

Shaft sinking is the usual method of testing placer ground. Prospect and sampling shafts, unless intended for later use in drifting or mining and unless exceptionally deep (75 feet or more), are sunk as small as practicable. The usual section is rectangular and 3 by 4 to 4 by 6 feet- in size. Round timber 4 to 6 inches in diameter which is available in most districts, is commonly used to crib shafts in loose gravel. In gravel tight enough to stand safely without lagging the only timber necessary is stulls set to hold the ladder.

A hand windlass is the usual means of hoisting, using a light steel, 2-cubic-foot bucket and a ¾— or 1-inch-diameter manila rope, as ordinary wire rope is unsuitable for a windlass; 75 to 100 feet is the maximum depth at which such equipment can be used most efficiently. For greater depths a power hoist of some kind should be installed. Large boulders can be lifted with, the ordinary hand windlass if it is provided with long cranks; as much as 800 pounds can be raised by two men. Such feats, however, are considered dangerous because,

By | 2017-10-19T09:14:26+00:00 October 19th, 2017|Categories: Geology|Comments Off on Shaft-Sinking for Gold Placer Prospecting

Sampling Placer Deposits by Drilling

The sampling of placer deposits by drilling or, more precisely, drive-pipe sampling, is discussed in detail by Janin. He states that the Keystone no. 3 traction machine is used generally in California. The usual casing is 6 inches inside diameter and 3/8 inch thick, in 5- to 7-foot sections. Drilling without casing is not good practice, and high values in a hole so drilled cannot be accepted. The bit and stem weigh 800 to 1,000 pounds, The cutting shoe usually is about 7½ inches in outside diameter. Theoretically this dimension is the diameter of the cylinder of material excavated, hence it determines the yardage per foot of hole drilled. A sand pump is used to lift the loosened gravel or sludge from the hole, usually after each foot of drilling when in pay dirt. The casing is driven ahead of the tools except when boulders or cemented gravel prevents. The casing is recovered after finishing the hole.

The Empire drill has been used sparingly in this country in foreign fields, however, it has been used extensively. It is a man-power rig, consisting of a light string of tools working inside a

By | 2017-10-19T09:09:30+00:00 October 19th, 2017|Categories: Geology|Comments Off on Sampling Placer Deposits by Drilling

Where are Placer Claims 

Placer claims containing alluvial deposits of gold or other metals can be located and patented on the public domain, national forests, stock-raising homesteads, and unpatented parts of congressional grants to railroads. Public land temporarily withdrawn from settlement, location, sale, or entry and reserved for water-power sites, irrigation, classification, or other public purposes shall at all times be open to exploration for metalliferous minerals and purchase under the mining laws. However, power or reservoir sites withdrawn by congressional action or Executive order are not subject to mineral location.

https://www.911metallurgist.com/buysell/used/mining-claims-bc-sale/

Although placer claims can be located and mineral rights obtained on stock-raising homesteads, written permission must be received from the homesteader to enter upon the land, or a bond, of $1,000 must be posted to indemnify the agricultural entryman for any damage that may be done to the crops or tangible improvements. Surface rights are limited to the land actually needed for mining purposes.

Mining claims cannot be filed upon patented land except where the minerals have been reserved, to the United States, on military or naval reservations, or in national parks or monuments. Land below high

By | 2017-10-19T09:04:15+00:00 October 19th, 2017|Categories: Geology|Comments Off on Where are Placer Claims 

Gold Placer Sampling and Estimation

Failure to sample and estimate properly the available yardage of placer deposits has resulted in a tremendous waste of money and effort. A large proportion of all placer operations has failed because the gold in the gravel was insufficient to repay the cost of even the most efficient mining, not to mention the return of money invested or interest thereon.

Many methods of sampling are available, including the simple panning of gravel from natural exposures, drifting, test-pitting or trenching, shaft-sinking, and churn-drilling. Actual mining on a small scale often is done as a method of sampling prior to investing considerable money in development or equipment. Several examples will be noted later under methods of mining.

The technique of panning and its use for estimating the gold content of gravel are discussed under the head of Panning and Rocking, as these operations are properly considered small-scale mining methods. In the following section the more elaborate methods of sampling are discussed, and costs are given where available.

Weight of Placer Gravel

Placer gravels vary greatly both in weight per cubic yard in place and percentage increase in volume on being loosened. Yet in making

By | 2017-10-19T09:13:54+00:00 October 19th, 2017|Categories: Geology|Tags: |Comments Off on Gold Placer Sampling and Estimation

BUY Laboratory & Small Plant Process Equipment

We have all the laboratory and plant equipment you need to test or build/operate your plant.

ENTER our Mining Equipment' Store

We Sell EQUIPMENT for all types of Mineral Treatment PROCESSES and Laboratory Testing needs

Do you need METALLURGICAL TESTING of your ORE?

View the Services we Provide

911Metallurgist Mineral Processing & Process Development Laboratory

We have a metallurgical test for every possible mineral type and treatment.

Need ENGINEERING Services or Plant TROUBLESHOOTING?

We can IMPROVE ALL PLANTS / Mineral Processing Engineering & LABORATORY Ore Testing

911Metallurgy Engineering

Contact us for process engineering, metallurgical investigations, plant optimization, plant troubleshooting, needs. WE “FIX” METALLURGY.

I Need Consulting Engineering Help
I Need Ore Laboratory Testing