Ore Deposits Hub
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ODH072: Propylitic alteration: origins and importance for PCD exploration – Jamie Wilkinson
Propylitic alteration: origins and importance as a new search space for porphyry ore systems under cover
Speaker: Jamie Wilkinson
London Centre for Ore Deposits and Exploration (LODE), Natural History Museum London and Imperial College London
24th March, 2021
Hosts: Marion Grosjean & Jamie Kelly
www.oredepositshub.com
Ore Deposits Hub is supported by the SEG, IAGOD, & SGA
All rights reserved by Jamie Wilkinson.
This lecture is for instructional/educational purposes only.
Переглядів: 3 608

Відео

ODH 122 - Sisir Kanti Mondal - Origin of Indian Archean chromite deposits
Переглядів 1,1 тис.2 роки тому
Origin of Indian Archean chromite deposits Speaker: Dr Sisir Kanti Mondal, Jadavpur University 20th April, 2022 Hosts: Michael Calder, Azam Soltani www.oredepositshub.com Ore Deposits Hub is supported by the SEG, IAGOD & SGA All rights reserved by Dr Sisir Kanti Mondal This lecture is for instructional/educational purposes only.
ODH 112- Steve Garwin - Application Of Geology & 3D Data In Discovering Porphyry Cu-(Au) Deposits
Переглядів 2,9 тис.2 роки тому
ODH 112- Steve Garwin - Application Of Geology & 3D Data In Discovering Porphyry Cu-(Au) Deposits
ODH 113 - Aaron Hantsche - Skarn Formation & Geochemical Footprint Of Distal Pb-Zn Skarns
Переглядів 3 тис.2 роки тому
ODH 113 - Aaron Hantsche - Skarn Formation & Geochemical Footprint Of Distal Pb-Zn Skarns
ODH Introducing the Society for Economic Geologists
Переглядів 5693 роки тому
ODH Introducing the Society for Economic Geologists
An ODH perspective on: Can Mining Make the World a Greener Place?
Переглядів 2263 роки тому
An ODH perspective on: Can Mining Make the World a Greener Place?
ODH083: Sediment-hosted copper deposits - Research Exchange Session 2/2
Переглядів 3,7 тис.3 роки тому
ODH083: Sediment-hosted copper deposits - Research Exchange Session 2/2
Climate Change & mining or how mining will save the world - Simon Jowitt (GS Nevada Invited Talk)
Переглядів 9433 роки тому
Climate Change & mining or how mining will save the world - Simon Jowitt (GS Nevada Invited Talk)
ODH069: Ni-Cu-PGM in mafic-ultramafic complexes, Man Craton (FRENCH)- Gouedji Gnamba Emmanuel Franck
Переглядів 7273 роки тому
ODH069: Ni-Cu-PGM in mafic-ultramafic complexes, Man Craton (FRENCH)- Gouedji Gnamba Emmanuel Franck
ODH068: Sulfate-rich fluids and REE mobilization - Hao Cui
Переглядів 5673 роки тому
ODH068: Sulfate-rich fluids and REE mobilization - Hao Cui
ODH069: Ni-Cu-PGM in mafic-ultramafic complexes, Man Craton (FRENCH)- Gouedji Gnamba Emmanuel Franck
Переглядів 6113 роки тому
ODH069: Ni-Cu-PGM in mafic-ultramafic complexes, Man Craton (FRENCH)- Gouedji Gnamba Emmanuel Franck
An ODH perspective on 'Can mining make the world a greener place?'
Переглядів 2413 роки тому
An ODH perspective on 'Can mining make the world a greener place?'
ODH061: Remote sensing for Au exploration in sub-tropical region, Cameroon - Jonas D. Takodjou Wambo
Переглядів 2,3 тис.3 роки тому
ODH061: Remote sensing for Au exploration in sub-tropical region, Cameroon - Jonas D. Takodjou Wambo
ODH060: Ore genesis of Okanjande graphite deposit, Damara belt, Namibia - Nelao Naimbale
Переглядів 9163 роки тому
ODH060: Ore genesis of Okanjande graphite deposit, Damara belt, Namibia - Nelao Naimbale
ODH055: VMS focused mapping initiative, Slave craton, Northwest Territories - Bernadette Knox
Переглядів 8024 роки тому
ODH055: VMS focused mapping initiative, Slave craton, Northwest Territories - Bernadette Knox
ODH053: Iron ore deposits of the Congo craton - Ganno Sylvestre & Landry Soh
Переглядів 7064 роки тому
ODH053: Iron ore deposits of the Congo craton - Ganno Sylvestre & Landry Soh
ODH052: Nova-Bollinger Ni-Cu Sulfide Ore Deposit, Fraser Zone, W. Australia - Valentina Taranovic
Переглядів 1 тис.4 роки тому
ODH052: Nova-Bollinger Ni-Cu Sulfide Ore Deposit, Fraser Zone, W. Australia - Valentina Taranovic
COVID-19 and the Mining Industry (Sept 2020) - Simon Jowitt (UNLV & RWTH SEG Chapter Seminar)
Переглядів 4824 роки тому
COVID-19 and the Mining Industry (Sept 2020) - Simon Jowitt (UNLV & RWTH SEG Chapter Seminar)
ODH042: Aseismic refinement of Orogenic Gold systems - Chris Voisey
Переглядів 3,7 тис.4 роки тому
ODH042: Aseismic refinement of Orogenic Gold systems - Chris Voisey
ODH043: Magnetite geochemistry reveals fluid sources in IOCG deposits - María Alejandra R. Mustafa
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ODH043: Magnetite geochemistry reveals fluid sources in IOCG deposits - María Alejandra R. Mustafa
Get To Know Ore Deposits Hub!
Переглядів 6 тис.4 роки тому
Get To Know Ore Deposits Hub!
ODH033: Passive Seismic Methods for Mineral Exploration - Nicholas Arndt
Переглядів 2,9 тис.4 роки тому
ODH033: Passive Seismic Methods for Mineral Exploration - Nicholas Arndt
ODH028: How to determine the timing of mineralisation from deposit-scale grade patterns - Jun Cowan
Переглядів 5 тис.4 роки тому
ODH028: How to determine the timing of mineralisation from deposit-scale grade patterns - Jun Cowan
COVID-19 and the raw materials sector: Impacts and responses - Aileen Doran & David Kaeter, iCRAG
Переглядів 4214 роки тому
COVID-19 and the raw materials sector: Impacts and responses - Aileen Doran & David Kaeter, iCRAG
ODH017: The formation of IOCG and IOA mineral systems: A case study of El Laco, Chile - Adam Simon
Переглядів 6 тис.4 роки тому
ODH017: The formation of IOCG and IOA mineral systems: A case study of El Laco, Chile - Adam Simon
ECS001: Geochemistry of metapelites: provenances and vectors in the Iberian Pyrite Belt - Filipa Luz
Переглядів 1,2 тис.4 роки тому
ECS001: Geochemistry of metapelites: provenances and vectors in the Iberian Pyrite Belt - Filipa Luz
ECS001: Fluid source and evolution in the Candelaria-Punta del Cobre IOCG district - Irene del Real
Переглядів 2,2 тис.4 роки тому
ECS001: Fluid source and evolution in the Candelaria-Punta del Cobre IOCG district - Irene del Real
ECS001: Physicochemical model for the formation of REE minerals with Columbian emeralds-Ángel Verbel
Переглядів 4444 роки тому
ECS001: Physicochemical model for the formation of REE minerals with Columbian emeralds-Ángel Verbel
ODH014: HiTech raw materials in alkaline-silicate and carbonatite systems - Charles Beard
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ODH014: HiTech raw materials in alkaline-silicate and carbonatite systems - Charles Beard
ODH012: Future metal supply - why price rises and cost innovations alone won’t save us -Rick Valenta
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ODH012: Future metal supply - why price rises and cost innovations alone won’t save us -Rick Valenta

КОМЕНТАРІ

  • @SteveJohnson-CU-CSM
    @SteveJohnson-CU-CSM Місяць тому

    Gold Vein deposits reflect the mineralogical growth and metamorphism of colloidal transporting “juice”.

  • @balanaik1
    @balanaik1 4 місяці тому

    I have some sources for the great sample for your scientific research of diamonds.

  • @2hacksbuilding82
    @2hacksbuilding82 5 місяців тому

    Thank you. I will use this information in my prospecting

  • @elamineahmed5724
    @elamineahmed5724 5 місяців тому

    Thank you

  • @thomassimonton8503
    @thomassimonton8503 5 місяців тому

    Thank you for the great video. You explain everything very well I learned a lot. Thank you again.

  • @anagy20
    @anagy20 5 місяців тому

    9:55 omg Universidad de Bogotá. MI GENTE LATINO. Psa: Thanks for the presentation.

  • @nathankerr9824
    @nathankerr9824 6 місяців тому

    Very interesting talk

  • @ryanw1433
    @ryanw1433 7 місяців тому

    This was fascinating- thank you! A question if you are still checking comments: in order for the precipitation of uranium to occur, the reductant material would need to be in a peaty, lignite, or similar state, right? Once the organics have been fully petrified (like the log in one of your slides) modern meteoric water would no longer have a reductant to cause precipitation, right?

  • @letv7156
    @letv7156 8 місяців тому

    Great thanks to Prof. Chang sharing his knowledge to everyone.

  • @mahameboubekrine1276
    @mahameboubekrine1276 9 місяців тому

    Great job

  • @mahameboubekrine1276
    @mahameboubekrine1276 9 місяців тому

    Nice job!

  • @alialioua9233
    @alialioua9233 9 місяців тому

    La vidéo . Le sujet tres intéressant. Mais la lecture nest visble pour lire les graphiques.

  • @SenorTucano
    @SenorTucano 9 місяців тому

    Very interesting. Thank you 🙏

  • @gerardcubaka342
    @gerardcubaka342 9 місяців тому

    Thank you very much for this video about new technologies such ML in exploration reseach. I learned a lot from all of you.

  • @jhayjuarez6794
    @jhayjuarez6794 9 місяців тому

    Hi Maria Alejandra , I would love to talk to you about my Gold mine. I'm from Peru but I living in US. I love your work and high knowledge.

  • @uniqueviewsnews
    @uniqueviewsnews 10 місяців тому

    Again Managem loves money and cooperation more than their own people.

  • @johngardiner669
    @johngardiner669 11 місяців тому

    Too bad B.C. would rather shake down mining companies using First Nations than actually explore for metals....

  • @woodworkingaspirations1720
    @woodworkingaspirations1720 11 місяців тому

    Great talk

  • @LECOMAYAGUA
    @LECOMAYAGUA Рік тому

    MIAMI, Sept. 26, 2023 (GLOBE NEWSWIRE) - North American Strategic Minerals Inc., a private US Delaware corporation, was formed in 2020 to explore for rare earth metals after its founders recognized a significant new geologic model for rare earth mineralization hosted in paleo basin pelagic sediments. Similar rare earth mineralization was first noted in modern basin pelagic sediments found at various locations on the Pacific seafloor. The mechanism of formation of this new type of rare earth mineralization is the direct precipitation of these critical metals from seawater into seafloor pelagic sediments. Article content The largest and most important of these rare earth seafloor metal precipitate deposits is known as the Minamitorishima deposit in the western Pacific. Technical details of Minamitorishima were first published in 2018 by a consortium of Japanese scientists who described this world-class rare earth deposit as having the potential “to supply these metals on a semi-infinite basis to the world.”1 Minamitorishima is considered to be the largest rare earth deposit in the world eclipsing all terrestrial deposits documented in China, Australia, Brazil, Vietnam, Greenland and elsewhere. The Japanese are currently investing six billion Yen to advance and develop the Minamitorishima deposit. Article content After recognizing the significant importance of this new style rare earth mineralization, NASM has applied this new target model to its exploration activities in paleo basin sediments at various localities of North America since 2020. NASM’s rare earth targets are found in a unique and very specific paleo basin sedimentary facies containing significant stratiform rare earth mineralization. This new style of rare earth mineralization discovered is distinctly different from common black shales or coal bearing sediments typically found throughout the world containing trace amounts of various minor metals. Top Stories Top Stories Get the latest headlines, breaking news and columns. youremail@email.com Sign Up By signing up you consent to receive the above newsletter from Postmedia Network Inc. Article content Article content The rare earth metals discovered by NASM are contained in paleo basin pelagic sediments as in-situ diagenetic elemental substitutions primarily within the crystal lattice of biogenic calcium phosphate minerals. Geochemical sampling on the Company’s primary target at its Lost Basin project has encountered grades between 0.1% and 0.5% Total Rare Earth Oxides (TREO). The average grade of Minamitorishima is 0.1% TREO. Biogenic calcium phosphate concentrates are shown to contain up to 2.0% TREO at both Minamitorishima and at NASM’s primary exploration target. This style of biogenic calcium phosphate rare earth mineralization is also very important as it is found to display rapid and high leach recoveries as reported by the Japanese researchers at Minamitorishima. Comparative data from both Minamitorishima and NASM’s primary project area indicates Heavy Rare Earth Oxide contents of +35% TREO. _______________ 1 www.nature.com/articles/s41598-018-23948-5 Mineral rights covering over 200 square kilometers have been secured by NASM and its wholly owned Canadian subsidiary on multiple targets in southern Manitoba and central South Dakota as NASM continues to explore this extensive sedimentary basin region for rare earth mineralization. Further evidence that this region contains this unique style of paleo basin metal precipitate mineralization is highlighted by the fact that central South Dakota contains the world’s largest paleo ferromanganese nodule deposit in the 4,000 square kilometer region centered around the town of Chamberlain. This paleo Fe-Mn nodule deposit is in many respects similar to the vast Clarion-Clipperton modern seafloor ferromanganese nodule field in the central Pacific. Article content Other new targets identified by NASM are also found to host this style of paleo basin pelagic sediment stratiform rare earth mineralization in three States in the mid-Continent region of the US. NASM is continuing to explore these new targets which, in places, contain laterally uniform and continuous grades of 0.15% to 0.2% TREO over strike length distances of 50 kilometers as seen from initial sampling. Recently, in July 2023, Chinese researchers announced the discovery of “paleo-continental sedimentary rare earth deposits”2 in Sichuan, Yunnan and Guizhou Provinces and published that “these deposits have advantages over ionic clay rare earth deposits.” We now believe that the Chinese rare earth industry has recognized and discovered the importance of this exact same style of rare earth mineralization that NASM has previously identified and has been working on since 2020. The nearly identical host rock lithologies, mineralogy and rare earth grades between NASM’s paleo basin pelagic sediment rare earth targets and the world-class Minamitorishima Pacific seafloor deposit is strong evidence supporting the discovery of a significant new rare earth deposit type. Article content Next month, NASM’s Executive Chairman, Michael Thomsen, will be attending Metal Event’s 19th Annual International Rare Earths Conference in San Antonio, Texas on October 19-20 and will be available to discuss NASM’s projects with potential investors. For further information on North American Strategic Minerals Inc: Website: www.strategicminerals.us Contact details: info@strategicminerals.us Francis Boulle, President & CEO - Founder Michael Thomsen, Executive Chairman - Founder

  • @quiettime1195
    @quiettime1195 Рік тому

    Great talk. Gave me some insight on the viburnum trend district. I'm actually trying to prove hydrothermal fossils in sedimentary rock due to brine migration and possibly hydrothermal vents in the Ordovician record near a lead deposit.

  • @ibrahimmuhammad3445
    @ibrahimmuhammad3445 Рік тому

    Thank you very much it's interesting

  • @BuddyDoyle
    @BuddyDoyle Рік тому

    The talk begins with mention of Lihir and Emperor, and surely these are examples of the top, "lithocap" of alkaline porphyry systems. At Lihir a sericite pyrite Illite cap lies above an intense potassic altered, anhydrite veined, monzonite core, with elevated Cu Mo (not economic). No albite present. The illite Phyllic cap get more illite rich as you approach the surface, (it holds much of the gold), where it is capped by intense kaolin rich blanket, in turn capped by Alunite rich/ slice bleached rocks forming around and below the active hot springs (h2S rich). It is described as a low sulphidation deposit. Yet there is no shortage of sulphur. The Sericite zone has >5% pyrite. The potassic zone is about 20% anhydrite. The top Alunite zone has alunite and pyrite. the Alunite zone is up to 50m thick. but is being actively eroded. (no gone to mining). Emperor is a bit different, asked by infill sediments.

  • @LydiaNikova
    @LydiaNikova Рік тому

    Do you have a comparison between magnetotelluric resistivity models as well as 3D inversion magnetic models in areas with high resistivity and magnetic susceptibility contrast similar to that you conducted to map the gabbro intrusion contact with metamorphic rocks. I think that the AMT and or CSAMT methods are more appropriate to map such structures controlling location of ore mineralization. May be the passive seismic method can be applied in areas with lots of high power lines that prevent using the AMT and CSAMT methods.

  • @geoffreywilliams9324
    @geoffreywilliams9324 Рік тому

    Thank you Kathryn for your huge effort in producing this lithium video . .

  • @abuabdillahsd611
    @abuabdillahsd611 Рік тому

    Hi Sir. I havr large and very Rich area.. I wonder whather you can help me by using remote sensing for gold detecting... All the best

  • @kalebgriffiths5018
    @kalebgriffiths5018 Рік тому

    Most deposits I’ve seen or read about have structures observable in drill core that bound alteration zones on one side, thus predate the alteration and controlled the flow of the fluids. Veins, joints, shears, faults, folds, I’ve seen all of them exhibit this characteristic.

  • @Worldgeochemist
    @Worldgeochemist Рік тому

    Highlights: ✦Kathryn Goodenough talks about the importance of lithium pegmatites in Africa for low-carbon transition. • Lithium pegmatites are important for the low-carbon transition. •Kathryn Goodenough is reviewing lithium pegmatites in Africa with her colleague Richard Judith Kinnaird. •She gives a high-level overview of lithium pegmatites. •Lithium and rare earth elements are critical metals used in modern technology. ✦Lithium from hard rock sources, particularly pegmatite, comes from Australia, China, and Zimbabwe. •Half of the world's lithium supply comes from South America's evaporative brines. •The other half of the supply comes from hard rock sources, mainly pegmatite. •The majority of lithium mined from pegmatite comes from Australia, with some production in China and Zimbabwe. ✦Lithium pegmatites can form from the partial melting of metal sedimentary crust and require an appropriate source of minerals to produce rare metal-enriched pegmatite. Click to expand •Two models of lithium pegmatite formation exist: from parental granite bodies and from partial melting of the local crust. •Lithium pegmatites contain a wide range of different ore minerals, including silicate minerals like Spodumene, Petalite, Lepidolite, and other lithium and phosphates. •Recognizing all the different minerals in lithium pegmatites is challenging, but necessary when working with these rock types. ✦The video explains the geological history of Africa and the distribution of lithium pegmatites across the continent. •Africa has central cores pushed together over time through orogenic events. •Lithium pegmatites are found in different regions of Africa, including the Kalahari Craton, West Africa, Central Africa, and Namibia. •The pegmatites have been mostly dated and studied by Frank Miller and his team at the University of Leoben. ✦The Arcadia project in Southern Africa has the region's largest JORC-compliant lithium reserve. •The reserve contains 26.9 million tonnes at 1.3% lithium oxide. •The pegmatites in the project have low iron helpful petalite for ceramics and spodumene useful for battery production. •The project has a series of stacked pegmatites, which is typical for LCT pegmatite prospects in Africa. ✦The section discusses the age and distinctive features of lithium pegmatites in Africa. Click to expand ✦There are three main lithium projects in Africa: Lelau in Mozambique, Caribou in Namibia, and Contigo in Ethiopia. •Pan-African pegmatites are enriched in tin or tantalum, but not necessarily lithium. •Lithium-enriched areas are substantially younger than Pan-African granites and geochemically different. •Not all LCT pegmatites are related to parental granites. ✦The speaker discusses the replacement of quartz with growth and the disruption of their work due to COVID-19. •Samples from camera TV have been worked on by Richard Shaw. •Some samples are still in Harare due to the lockdown. •Muscovite chemistry is a good indicator of the prospective for lithium. •They hope to build up more data to show how muscovite chemistry can be used.

  • @jamsranerka6162
    @jamsranerka6162 Рік тому

    Thanks 🙏

  • @merrillmay9098
    @merrillmay9098 Рік тому

    *PromoSM* 💪

  • @karhukivi
    @karhukivi Рік тому

    An economist's view is that commodities keep pace with inflation in the long run. A commodity is a basic good used in commerce that is interchangeable with other goods of the same type. Zinc is a commodity as it is freely traded and not stored as a hedge against inflation, wars or other upsets. Gold is not a commodity as it is often hoarded, not always freely traded and in the past its price was controlled.

  • @karhukivi
    @karhukivi Рік тому

    A menos que esté equivocado, he visto un foto de usted con la isla de "Ireland's Eye" al fondo! Que yo sepa, ne tenemos yacimientos IOCG aqui, desafortunadamente...

  • @jdean1851
    @jdean1851 Рік тому

    What a Beautiful Opening Picture! Great Info! Thanks from the Clearwater Embayment in Idaho!

  • @robertmoye7565
    @robertmoye7565 Рік тому

    Great talk and amazing work unraveling the complex geology.

  • @robertmoye7565
    @robertmoye7565 Рік тому

    Excellent presentation with great information backed by real world examples.

  • @robertmoye7565
    @robertmoye7565 Рік тому

    This was absolutely fascinating. Thanks to all.

  • @robertmoye7565
    @robertmoye7565 Рік тому

    Outstanding presentation.

  • @robertmoye7565
    @robertmoye7565 Рік тому

    This is a brilliant presentation with grand real world examples integrated with the models. Thank you.

  • @blaiddgwyn
    @blaiddgwyn Рік тому

    It's a mistake to call rhodonite or bustamite as retrograde skarn. The replacement of pyroxene by manganese silicates it's a metasomathic process completely anhydrous.

  • @robertmoye7565
    @robertmoye7565 Рік тому

    Fascinating. Outstanding work and excellent presentation.

  • @TheSunAndTheMoonrising
    @TheSunAndTheMoonrising Рік тому

    How many actual African people does this help? Does African human resources mean labor only? Do African people own the mining rights to the minerals? What is your organization going to do to insure the African people are not exploited by foreign influences or African dictator influences? These are legitimate questions that should be widely broadcast. My best regards in your endeavor to help the world and African communities.

  • @paulbuenano6962
    @paulbuenano6962 Рік тому

    Thanks so much and congrats, Maybe could you help with the bibliography?

  • @CanadianGoldMining
    @CanadianGoldMining Рік тому

    Thanks this was a great talk .. Im prospecting an area of B.C loaded with skarns and all this was super helpful !!

  • @박규승-l5i
    @박규승-l5i Рік тому

    Nice presentation thx

  • @alexdrockhound9497
    @alexdrockhound9497 Рік тому

    I love carbonatites

  • @suleimangane8175
    @suleimangane8175 Рік тому

    If you have any one who needs lapidiolite supply pls holla at me

  • @zenken_viking
    @zenken_viking Рік тому

    Thank you!

  • @ophiolit
    @ophiolit Рік тому

    Спасибо!

  • @torlabriola7783
    @torlabriola7783 Рік тому

    Thanks! Any thoughts on Dundas Minerals sulphide discovery nearby? Would you expect to find any copper or nickel sulphides in zones somewhere in the system?

  • @antidemman847
    @antidemman847 2 роки тому

    Zimbabwe happens to have the highest level of LPi0! The revolution will be televised 🌽🪄

  • @6Diego1Diego9
    @6Diego1Diego9 2 роки тому

    Oh you got a masters degree? You think you're my master now?