Local Geology. The rocks of the area belong to the Vindhyan group. Main rock type in the lease area is lower Bhander Sandstone (Bundi Hill sandstone). In the area sandstone is overlain by alluvial soil, murram and weathered sandstone Lithographic sequence observed in the area is as given below:- Alluvium soil 0.5 – 3.0 m Murram and Weathered Sandstone 1.0 – 3.0 m Hard and Compact Sandstone 4.0 – 20.0 m Splittable sandstone 1.0- 10.0m Specific gravity of sandstone is taken as 2.5 m3/ ton.
Local Geology. Mesozoic Upper cretaceous Lameta Formation bagh Formation Sedimentary, silica sand Lithology: Soil - 1.0m Soil with Clay intermediated bed - 3.0m Silica sand - 4m • The topographic plan of the applied area prepared on scale with contour interval 10m depending upon the topography of the area should be taken as base plan for preparation of geological plan. The details of exploration already created including evidences of mineral existence should be shown on geological plan. • The scale of surface and surface geological mapping is 1:2000 with contour interval of 10m. • For preparation of geological plan, surface geological plan prepared on a scale of scale of 1:2000 specify under Para 1.0(f) of part of the format may be taken as the base plan. The detailed of the exploration already carried out along with supporting data for existence of mineral, locations proposed exploration, various laihunites with structural features, mineralized /ore zone with grade variation if any may be marked on the geological plan along with other features indicated. • Geological Section: May be prepared on natural scale of geological plan at suitable interval across the lease area from boundary to boundary.
Local Geology. The local geology belongs to the uppermost division of the Vindhyans is the Bhander series, which is separated from the Rewa series by a horizon of diamond- bearing conglomerate. The Bhander sandstones are fine- grained and soft, usually of a red colour with white specks. When light- coloured they often show red streaks. They are fairly thick- bedded and yielded large blocks which are used in building. The upper Bhander frequently show ripple-marks. The litho-units are tabulate below:- Formation Litho-units Thickness (m) Bhander series Soil 0.5 - 1 Sandstone 10 (1 m weathered Sandstone) The map showing geology of the lease area is enclosed as Annexure – X.
Local Geology. The subject property is located on the Booneville Hills lowland physiographic province, consisting of undifferentiated glacial outwash of Wisconsinan Age. These are alluvial deposits laid down during the seasonal flooding of the Ohio River and Pigeon Creek. These surficial deposits vary from 50 to 100 feet in thickness overlaying the bedrock, and consist mostly of silt, sand, and gravel. The underlying bedrock is of Middle Pennsylvanian Age, of the Carbondale Group. The rocks are sandstone, shale, with minor limestone and coal beds. The beds dip very gently to the west into the center of the Illinois Basin. Underground coal mining occurred beneath parts of Evansville in the past. The available maps do not indicate that any mining occurred beneath any of the six INDOT parcels, but some mining did occur a short distance from the parcels. A mines and minerals map is included in this report and the location of the old coal mines is indicated. These are north and west of the six parcels. Although Vanderburgh County is an oil producing county, there is no oil production present in the City of Evansville or in the area of the six parcels.
Local Geology. The lithology at Duddar consists primarily of carbonate — shale sequences with minor amounts of fine to coarse xxxxxx-clastics. Rapid facies changes typify the stratigraphic sequences at Duddar. The mineralisation is hosted in a clastic sediment sequence. The mineralisation is composed of pyrite/marcasite, sphalerite (Zn) and lesser galena (Pb) within de-calcified mudstones and silicified limestones. A veined and disseminated sphalerite- galena-chalcopyrite stockwork mineralisation zone underlies and cross cuts the stratiform assemblage. The local geology is shown in Figure 5.2 along with the location of the drill-holes.
Local Geology. Due to prolonged weathering and erosion of the upper portions of the intrusives, a blanket of intensely yellow and red oxidation colours were formed, which is responsible for the name “Sulphide Valley”. The local lithology and three mineralised areas are shown in Figure 6.2 and summarised in Table 6.4. Three mineralised stocks are identified as the South, East and North orebodies. Table 6.4 — Saindak Copper Gold — Orebody Characteristics Dimensions of the orebody Orebody Vertical Length Width Comments South . . . . . . . . . . . . . 350m 500m N-S 400m E-W Simple form of mineralisation, even distribution of grades North . . . . . . . . . . . . . 20-80m 350m 30 – 60m About 2km away from the South Orebody,extends northwestwards 50o ≤ 60o,structurally disturbed. East . . . . . . . . . . . . . . 500m 1,300m 600m About 700m away from the South orebody; extends from NW – SE Source: Basic Design Report 1991 Locally, the host-rocks are cross-cut by quartz-tourmaline, gypsum and anhydrite veins. Two major geological structures are identified in the deposit: the Amalaf Syncline and Saindak Fracture (generally termed as ruptures in the documents reviewed by M-MC). The Amalaf Syncline centres roughly on the East Orebody and extends towards the northwest. The Saindak Fracture extends in an approximate east-west direction, dividing the Saindak area into the South and North Zones. The three mineralised diorite-porphyry stocks occur to the south of Saindak Fracture. Other structural elements in the area include secondary fractures and xxxxx. There seems to be no apparent structural control of mineralisation. The sub-vertical stocks are hydrothermally altered. The hydrothermal alteration zones are characterised by distinct mineralogical assemblages. Major alteration zones form roughly concentric patterns, with potassic zone in the centre gradually transiting outward into silicic, sericitic and propylitic zones. The pyrite mineralisation in the potassic alteration zone is uniform with variable Au contents. The Cu content varies in these alteration zones. The metal content in Saindak deposit is primarily controlled by the alteration zones as summarised in Table 6.5. Table 6.5 — Saindak Copper Gold — Grade Distribution in Alteration Zones Alteration Zone Cu (%) Au (g/t) Strong potassic . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.49 0.56 Weak potassic . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.24 0.31 Sericitic . . . . . . . . . . . . . . . . . . . . . ...
Local Geology. The following information was sourced from Golder, 2009 and NETC, 2008. The large-scale structure of the Cape Xxxxxxx area is a series of north-east trending synclines and anticlines. The axis of such an anticline is located in the central portion of the Cape Xxxxxxx tenement area. The Cleaverville iron deposit is located on the north-western limb of the anticline located near the coast with the main area of drilling by Robe being on the south-eastern limb of the syncline and the north-western limb of the adjacent anticline.
Local Geology. The geology that is in the area of study is represented by rhyolitic tuffs, which belongs to the upper volcanic series package, this being the encajonante rock of the existing mineralization; is located where the level of erosion is at a juvenile stage and acid volcanic rocks package is being eroded to discover even the pre-existing rocks such as the andesitic series, which in adjacent areas are recipients of economic mineralization. Megoscopicamente presents a light brown color to greenish with variations to reddish brown, with crystals of quartz and porphyritic texture. The microscope presents a pyroclastic texture; with quartz, feldspar, devitrified glass, sericite, chlorite, calcite, hematite, limonite, rock fragments, altered ferromagnesium and clay minerals. • In this rock there is a pseudo stratification of strike NW 40° SE with inclination of 20° SW, between the fault 2 and the fault 3, thus also arise small dikes of andesitic composition which makes us think the lower sequence must be shallow, which is the principal recipient of the economic mineralization in adjacent areas.
Local Geology. The Quarry lease area is covered with Building Stone & Road Metal which is rising up to 42 M above ground level trending NW-SE, the strike length of the body measured 280 M in the area with an average width of 322M. The quarry lease area is in the form dome shaped hillock covered by sheet.the rock in the quarry lease area is peninsular gneissic rock of Archean age and it is medium to coarse grained texture which is light gray in colour, compact, brittle in nature, it is trending is NW-SE direction. The Building Stone & Road Metal can be extracted from the rock available in the quarry lease area which is useful in construction purpose.
Local Geology. The gravity canal alignment runs in the northern part of Adilabad district extended from west to east. The area is characterised by contrast geomorphologic setup with high flat topped hill ranges, which are characteristic land forms of Deccan trap terrain exposed in the western part (Photo-1) and undulatory terrain, soil covered, with occasional rock out crops covering almost entire eastern sector. This pediplain terrain is developed over flat bedded rock types. Denudational hill ranges made up of metamorphic are conspicous in the south eastern end portion of the canal. The canal area is located in penganga river basin and drained by Satnala and other tributaries of penganga. Radial drainage has developed over flat toped hill ranges in the western part and northely trending drainage system and denritic drainage pattern in remaining area. The canal crosses Satnala at ch 58.850km (Photo-2). Bad land topography has developed around Satnala, at ch 70kms and in between ch 80-83kms. The canal in the initial of 28kms runs along the foot hill portion of Xxxx xxxx ranges. All along the reach basalts belonging to Deccan traps are exposed. They are near horizontally disposed. In all, 5 flows have been identified. They are made up of alternate sequence of compact and amygdoloidal basalts. Their contact is sharp. They are traversed predominantly by 1. N-S, 2 NW-SE and 3 N60 E-S60W trending joints. At some places columnar joints are also observed. Between 9.00 and 10.00kms the canal crosses valley portion occupied by scree material mixed with clay. Along the reach ch 28 to 89.09 kms limestones belonging to penganga group are the rock types which are exposed at places (Photo-3). The general trending of bedding is along NW-SE with sub horizontal beds 4° to 15° dipping towards NE. The limestone is pink to Grey and flaggy in nature. Bedding joints are the persistent joints.
