Faber&VanderEnde BV’s Post

A rounded to sub-rounded volcanic clast supported polymictic breccia, the clasts are silica dominated with quartz and potassium feldspar, and aphanitic hematitic clasts. Hematite/specks of specular hematite too. The voids within the clast supported brecca are filled by carbonte? with secondary copper (malachite/chrysocolar) patches pervasively spread through out the breccia. Copper assays from several samples returned >0.20% with a peak assay of 1.37% Cu, Au peaked 0.045 g/t Au, silver peaked 17.4 g/t Ag. The outcrop site appears to be at crater of a caldera like topographicalfeature. .

Iron ore was formed over millions of years through a highly complex geological process. At a time when the Earth’s atmosphere had very little atmosphere, iron was found dissolved in oceans. Oxygen, released by early underwater plant life during photosynthesis, reacted with the dissolved iron and formed iron oxides, primarily hematite and magnetite. The iron oxides settled on the ocean floor where they mixed with other sediments, creating the layered formations called banded iron formations (BIFs). Western Australia, Brazil and Canada are a few of the places where BIFs are found in abundance. Another source of iron ore is magma released during volcanic activity. After the magma cools, iron-rich minerals like magnetite crystallize and settle, concentrating in layers within the igneous rock. Sweden and South Africa are two countries where this type of magnetite is found. #IronOreGeology #BandedIronFormations #IronOreSources #MagnetiteDeposits #IronOre #BitCoal #BitCoalAfrika #BitCoalGroup

The copper orebodies form in hydrothermal veins that are born in underground magma chambers far below the deposit itself. The high temperatures of volcanic magma creates hydrothermal veins, allowing some of the heat to escape near the upper layers of the Earth’s crust. This is why copper is often found in the sedimentary layer, where sand and mud are compressed until they form a layer of sedimentary rock on the surface of the earth. Copper ore gets trapped in oxidized zones within these types of rocks. Copper is also commonly found in the oxidized zones of mineral deposits and in basalt cavities that have been in contact with hydrothermal veins. The presence of volcanoes in a region is often a good indicator of the presence of copper because that is where basalt cavities are in abundance near the sedimentary layer of the Earth. This copper is a kind of chalcopyrite that formed beneath 60 metres depth and it can only be processed through floatation. The formation of copper is geologically awesome when we study on the formation of ore body.

🌋 Volcanoes house more than molten rock. Alongside the magma sits a mysterious substance called magmatic brine, a #mineral-rich soup that collects underneath both active and dormant #volcanoes. Geologists are now exploring whether these deep subterranean pools can be tapped for dissolved treasures such as #lithium, #copper, and #cobalt. The extraction could be powered by #geothermal #energy ⚡ , leading some scientists to call it “green mining”.  These brine “lenses”, so-called because of their distinctive shape, tend to settle about two to four kilometers beneath the surface. With the #minerals already in solution, the brine requires less #processing and creates less #waste, than land-mined #material. The #engineering challenge is immense: finding ways of drilling boreholes up to 4km down into rocks as hot as 400C; protecting wells from collapse and corrosion by the highly acidic fluid; and guarding against the #metals being prematurely deposited, like limescale inside a kettle, on their long journey up. It is a bold and risky plan, to dive into these mountains of fire to pluck treasure from the roiling fluid. But with 1,500 volcanoes dotted around the planet and #critical #minerals for the #energy #transition running low, the #payback could be explosive. Anjana Ahuja Financial Times https://lnkd.in/dA5y5tdw

Australasian Metals Limited Identifies Additional Drill Targets at the Capella Project #AustralasianMetalsLimited (ASX: A8G) (Australasian Metals or the Company) has announced the successful completion of a comprehensive data review for the Ayres Rock Prospect, part of the #CapellaGoldProject in #CentralQueensland, Australia. The #AyresRockProspect is interpreted as a structurally controlled, epithermal-style quartz vein breccia system, hosted within rhyolitic ignimbrites of the Silver Hills Volcanics. The widespread alteration in the volcanic units is characterized by quartz, albite, chlorite, carbonate, pyrite, and occasional epidote, with rare occurrences of orthoclase. Furthermore, you can visit here at https://lnkd.in/eqSt_bDc #SilverHillsVolcanics

The Birth of Rocks and Minerals Rocks: Rocks are naturally occurring aggregates of minerals or mineraloids. They form through a series of geological processes, starting with the rock cycle. This cycle includes three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks originate from molten magma, either cooling beneath the Earth’s surface (intrusive) or solidifying on the surface (extrusive). Sedimentary rocks are formed from the accumulation and compression of sediment over time. Metamorphic rocks, on the other hand, are the result of pre-existing rocks undergoing high pressure and temperature, leading to a transformation. Minerals: Minerals are naturally occurring, inorganic substances with a defined chemical composition and ordered atomic structure. They are created through various geological processes, including crystallization from magma or solutions, precipitation from water, and metamorphic transformations. Minerals can form in a wide range of conditions, from the intense heat of volcanic environments to the quiet depths of the Earth’s crust.

#skarn deposits skarn are calc -silicate rocks formed by replacement of carbonate lithologies either during reginal metamorphism or by contact metasomatic processes related to igneous intrusions, the word skarn was originally used by swedish miner's to indicate fe-rich calc -silicate gangue mineral. The skarn type alteration mineralization related to porphyry environment, A classification of skarn should take into consideration both the rock type and the mineralogical association of the replaced lithologies, the term Endo and exo skarn refer to the skarnification of igneous or aluminous rocks and carbonate rocks respective. Tectonic setting: skarn occur in most tectonic setting where there is magmatism and development of carbonate lithologies particularly of the porphyry related types are related to convergent boundaries ranging from oceanic island arcs to continental margins. The formation of skarn involves stages iso chemical metamorphism and metasomatism, towards the final phases cooling a retrograde stage occurs. Minerals assemblage: calcite, diopside, k-feldspar, graphite, following the cooling of quartz monoznite pluton. Economic interest: skarn are classified in term of their metal (fe,cu,pb,zn), and mo,w,sn. Gold is present by product of base metal.

ICYMI: https://buff.ly/49JFfk1 Kalo Gold Identifies Untested Vunisea Fault – A Potential Gold Feeder Zone of the Qiriyaga Hill Deposit, Vatu Aurum Gold Project. 👉 The Vunisea Fault potentially acted as a metal-bearing epithermal fluid conduit or “feeder zone” that then spread laterally to the east into layers of porous tuffs, volcanic breccias and limestone layers, thereby creating the Qiriyaga Hill Deposit.

Slightly over a week ago I posted a LWIR satellite image for hypersthene for the area west of Fredericton, New Brunswick, where both the historic past-producing Lake George Antimony Mine and Edge Exploration's 35 sq km Mactaquac claim 8300 occur. Nodes high in hypersthene are interpreted to reflect mafic dykes present at both the sites of the former mine and a multi-element MMI soil geochem anomaly of which the highest values in ppb are: As 1400, Au 0.7, Bi 5.7, Co 531, Cr 600, Cu 3510, Dy 457, Er 332, Eu 76, Fe 1006, Mo 213, Nd 510, Ni 1790, Pb 2030, Pr 90, Sb 99, Sc 124, Sm 204, Sn 5, Sr 1420, Tb 67, U 343, W 3.4, Y 3700, Yb 279, Zn 2000 and Zr 564. It is inferred that the suite of anomalous elements reflects mineralization associated with Shoshonitic dykes https://lnkd.in/e6EHE37D as is the case at the former antimony mine and nearby unroofed mineralized stockwork. "In places, shoshonitic and high-potassium calc-alkaline magmatism is associated with world-class hydrothermal gold and copper-gold mineralization. Examples include:[6] Ladolam gold mine, Lihir Island, Papua New Guinea; Bingham copper-gold mine, Utah; Grasberg copper-gold mine, Indonesia; Oyu Tolgoi copper-gold mine, Mongolia." https://lnkd.in/e9nVxutc #gold #copper #molybdenum #antimony #uranium #Shoshonite #BinghamCanyon #OyuTolgoi #Grasberg

Clastic sedimentary rocks are rocks that are formed from fragments of pre-existing rocks, minerals, or organic remains that have been transported by wind, water, or ice, deposited in layers, and then cemented together. These fragments, called clasts, Read more here: https://lnkd.in/dCQK2d7D