#Cratons

[mindblowingscience]

Ancient, expansive tracts of continental crust called cratons have helped keep Earth's continents stable for billions of years, even as landmasses shift, mountains rise and oceans form. A new mechanism proposed by Penn State scientists may explain how the cratons formed some 3 billion years ago, an enduring question in the study of Earth's history. The scientists report in the journal Nature that the continents may not have emerged from Earth's oceans as stable landmasses, the hallmark of which is an upper crust enriched in granite. Rather, the exposure of fresh rock to wind and rain about 3 billion years ago triggered a series of geological processes that ultimately stabilized the crust—enabling the crust to survive for billions of years without being destroyed or reset.

Continue Reading.

[merelygifted]

The Earth beneath our feet may feel solid, stable, and seemingly eternal. But the continents we call home are unique among our planetary neighbors, and their formation has long been a mystery to scientists. Now, researchers believe they may have uncovered a crucial piece of the puzzle: the role of ancient weathering in shaping Earth’s “cratons,” the most indestructible parts of our planet’s crust.

Cratons are the old souls of the continents, forming roughly half of Earth’s continental crust. Some date back over three billion years and have remained largely unchanged ever since. They form the stable hearts around which the rest of the continents have grown. For decades, geologists have wondered what makes these regions so resilient, even as the plates shift and collide around them.

It turns out that the key may lie not in the depths of the Earth but on its surface. A new study out of Penn State and published in Nature suggests that subaerial weathering – the breakdown of rocks exposed to air – may have triggered a chain of events that led to the stabilization of cratons billions of years ago, during the Neoarchaean era, around 2.5 to 3 billion years ago. ...

[spacenutspod]

In this episode of SpaceTime, new research suggests Venus may have formed continents in a manner similar to early Earth, the BepiColombo spacecraft faces propulsion issues, and Sentinel-2C joins the Copernicus family in orbit. Join us for these fascinating updates and more!  00:00:00 - This is SpaceTime series 27, episode 109, for broadcast on 9 September 2024  00:00:45 - New study suggests Venus's tesserae may have formed like Earth's earliest continents  00:12:30 - Propulsion glitches aboard the BepiColombo spacecraft  00:23:45 - Sentinel-2C joins the Copernicus family in orbit  00:32:15 - The science report: Cell phones do not cause brain cancer  For more SpaceTime, visit our website at www.spacetimewithstuartgary.com www.bitesz.com Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support Sponsor Links: NordPass ProtonMail & Security Malwarebytes NordVPN

[shi0n]

cant wait to get back home to my tectonic plates simulation

[justasensitiveplant]

😇🐈‍⬛🍜🌻🌍 For the ask game!

Hii thanks for the ask!!

😇 Good question.... I'd say maybe Blade or Cabbie...do they count as blorbos or meow meows?

🐈‍⬛️ Technically the horse, since I've spent a large chunk of my childhood obsessed with them. Recently I've been trying to design a mascot for my blog and chose an owl so I think that's the more recent answer?

🍜Chicken ❤️ I love chicken so much... ☺️ in the oven.... like, with rice or potatoes 🤤 I'm a simple person

🌻 I really enjoy plants but not necessarily flowers so....chamomile I'd say? It grows a lot in some parks around my house and it always makes me appreciate spring so much more. Also it has medicinal properties, so I appreciate it's existence just a little bit more for that.

🌎 This summer I went to Stocholm and some islands with my uni. I'd say that that's probably the most beautiful place I've ever been to (biased because of geology but still). While my own country doesn't really have anything to envy (debatable), the grass is always greener and all that. So the moment an opportunity for study arrises I'm Real Gone 😆

Thanks again so much for the ask, I really enjoy answering these ❤️

[syn4k]

babygirl i've researched topics you didn't even know existed

[townpostin]

World's Oldest Beach Discovered in Jharkhand's Singhbhum

Research dates ancient shoreline to 3.2 billion years ago, reshaping continental formation theories Groundbreaking study reveals Singhbhum district as the site of Earth’s earliest known beach, predating previous estimates of continental emergence by 700 million years. JAMSHEDPUR – A recent study published by the National Academy of Sciences of America has identified Singhbhum district in…

[colitcomedia]

Discovery-Driven Value Creation: Unlocking Investor Opportunities in Platina Resources' Gold Projects

PLATINA RESOURCES (ASX: PGM) is a gold exploration company with promising projects in Western Australia. Its portfolio encompasses seven gold projects in the Ashburton Basin and Yilgarn Craton, spanning a land area of 1,487KM². With a solid history of successful exploration and drilling, the Company possesses ample funding to execute its strategic plans. The Projects are strategically situated in highly favorable regions, offering the potential for significant discoveries. PLATINA RESOURCES boasts advanced exploration and drilling capabilities, supported by an experienced team that excels in exploration and acquisition execution. Given its advantageous position in the current gold market, the Company is well-prepared to achieve substantial breakthroughs. Mr Corey Nolan, the Managing Director of Platina Resources, recently delivered exciting updates on the Company’s gold-focused projects through a recently published INVESTOR’S PRESENTATION.

Platina Scandium Project sold for US$14 million

Platina Resources Limited has entered into a legally BINDING AGREEMENT with a subsidiary of Rio Tinto Ltd to transfer its highly promising Platina Scandium Project for US$14 million. The Platina Scandium Project is a significant global deposit of scandium known for its outstanding quality and the potential to become Australia’s first scandium producer. It also holds valuable cobalt and nickel resources.

According to the agreement, upon the successful completion of the transaction, Platina Resources will receive a cash payment of US$8 MILLION. Additionally, there will be a warranty retention payment of US$1 million, which Rio Tinto will repay after 30 months. As part of the deal, Platina Resources may also receive up to US$6 million in cash payments contingent upon Rio Tinto meeting specific project milestones, such as granting a Mining Lease. This agreement reflects the strong commercial viability of the Platina Scandium Project and highlights Platina Resources’ leading position in scandium exploration.

The finalisation of the transaction depends on obtaining the necessary approval from the NSW Ministerial Consent, which is expected to be concluded soon.

Mr Corey Nolan, Managing Director of Platina Resources, said, “This transaction with Rio Tinto will also allow Platina shareholders to benefit from an injection of new funding to advance its extensive gold portfolio and pursue other more advanced project opportunities without shareholder dilution.“

Gold Focus Transformation of Platina Resources

Platina Resources has transformed its strategic focus from platinum to gold, positioning the Company to capitalize on the solid momentum in the gold market. The scandium sale has boosted the implied value of its Western Australia gold projects, including Xanadu, Brimstone, Beete, Binti Binti, Challa, Mt Narryer JV, and Jubilee.

Before exploring individual gold projects, it’s crucial to acknowledge the favorable gold price environment. As of June 9, 2023, the gold price stood at AUD 3,000 PER OUNCE and USD 2,250 PER OUNCE. The upward trajectory of gold prices enhances the potential returns for investors, making this an opportune time to participate in Platina Resources’ gold exploration endeavors.

Exploration Projects and Drilling Plans of Platina Resources

Platina Resources has three key gold projects scheduled for drilling in 2023: BRIMSTONE, XANADU, AND BEETE. These projects are strategically located in the Ashburton Basin and Yilgarn Craton, renowned for their rich mineral endowment. The vast tenement package spanning 1,487 KM² provides an extensive area for exploration and discovery.

Brimstone Project

The BRIMSTONE PROJECT, located 40km northeast of Kalgoorlie Eastern Goldfields in the Yilgarn Craton, is close to the high-grade Penny’s Find deposit. Historical drilling has revealed extensive gold mineralization, with interpreted geological structures covering approximately 10km of strike length. Brimstone states numerous walk-up drill targets, and the planned reverse circulation drilling in July 2023 will test mineralization at depth and along strike at Brandy, Garibaldi, Old Camp, and Billabong North prospects.

Xanadu Project:

Xanadu Project is situated 29 km south of Parabardoo in the Ashburton Basin. The Project benefits from its proximity to the 1.44MOZ Mt Olympus Gold deposit. The Project shares a similar structural and geological setting to the Mt Olympus deposits located 10 km northwest, indicating significant potential. Rock chip assays have indicated gold values of up to 1.98G/T AU. The upcoming systematic exploration program aims to unlock the Project’s full potential by targeting shallow oxide mineralization and deeper structural targets. Planned activities include the Hermes rock chip and mapping program, cultural heritage approvals, reverse circulation drilling, and diamond drilling at Xanadu West.

Beete Project:

The BEETE PROJECT is 10 km south of the Scotia Mining Centre, which has a significant gold resource of 1 million ounces and is located north of the recently discovered Salmon Gums deposit. The Beete Project, positioned 42km south of Norseman in the Yilgarn Craton, offers substantial gold, lithium, and nickel potential. The Project benefits from its location near the Norseman Greenstone Belt, known for its historical gold production of over 5 million ounces. Aircore and reverse circulation drilling programs are planned in Beete Project for the fourth quarter of 2023, targeting the extension of known gold mines and prospective areas near Scotia Mining Centre and Salmon Gums.

In summary, Brimstone, Xanadu, and Beete are three gold projects that offer substantial potential for gold mineralization, featuring extensive areas for exploration and promising opportunities for discovery.

Financial Overview and Market Dynamics from the Investor’s Presentation

Platina Resources maintains a solid financial position, with a market capitalization of approximately A$16.2 MILLION. As of March 2023, the Company had A$1.3 MILLION IN CASH, and as of June 16, 2023, its investments totaled A$2.36 MILLION. With the recent sale of the scandium project and the injection of new funding from Rio Tinto, Platina is well-positioned to drive value creation through exploration and development activities.

The current market dynamics, characterized by solid gold price momentum, further enhance the investment outlook for Platina Resources. As of June 20, 2023, the gold price stood at A$2,870.45 PER OUNCE, reflecting positive market sentiment and an attractive backdrop for gold exploration and production companies.

As Platina Resources continues its journey towards unlocking the hidden treasures in the Ashburton Basin and Yilgarn Craton, it positions itself as an attractive investment proposition with substantial upside potential.

[colitcollp]

About Managing Director Corey Nolan : Platina Resources

Managing Director of Platina Resources, MR. COREY NOLAN is a senior expert in the mining industry. He has over 25 years of unparalleled experience focusing on various aspects of resource projects including acquisition, financing, exploration and development.

[themightyfoo]

In the northwest corner of Australia lies the Pilbara Craton, which is home to some of the oldest surviving surface rocks on Earth. It dates from the Archaean Eon, and is estimated to be 2.7 to 3.8 billion years old. Aboriginal peoples believe life originated here. Evidence of the earliest known life on land was found here, in 3.48 billion year old geyserite rocks. Pilbara contains an incredible diversity of subterranean life.

Even older are the Jack Hills on the west coast of Australia; they contain zircons dating from the Hadean Eon, 4.4 billion years ago.

Respect your Mother Earth.

[amnhnyc]

What are orbicules? This piece of granite comes from the Yilgarn Craton in Western Australia, an ancient piece of continental crust that began forming about 2.7 billion years ago. It’s one of the oldest enduring landmasses on Earth. Orbicules are the unusual ball-shaped, radial clusters of crystals that you can see on this rock. The diversity in the orbicules’ mineral composition and structure indicate that the conditions in the magma changed as they grew. See this specimen and more than 5,000 others in the Mignone Halls of Gems and Minerals. We're open daily from 10 am–5:30 pm! Plan your visit.

Photo: © AMNH

[tanadrin]

according to traditional chinese mythology, the jade emperor was born into the kingdom of Pure Felicy and Majestic Heavenly Lights, and spent 1,750 eons of 129,600 years cultivating the Tao on the Bright and Fragrant Cliff before he attained Golden Immortality. after another hundred million years of cultivation, he became the Jade Emperor. this means the time from his birth to the time he attained the status of Jade Emperor was about 327 million years.

based on his magisterial and benevolent nature the jade emperor must have been a giant eurypterid of the genus Hibbertopterus, as elasmobranch fishes are notoriously cruel, and amphibians are all Legalists who have no truck with the Tao. locating the Kingdom of Pure Felicity and Majestic Heavenly Lights is much easier: obviously it was on the northeast side of the Paleo-Tethys sea, on the craton that is now part of northern China, which is why the geological memory of the Jade Emperor persisted in that region down to the present day.

[kachavashka]

I visited the town of Serpentine, Noongar Country (South-West Australia) in February this year.

It was the height of the Bunuru (second summer) season, so it was very hot and everything was really dry. Although that particular day that I went was cooler than usual, reaching a maximum of 27.5 so it was quite pleasant to walk. Just for comparison, the day before reached a maximum of 41.7, and the day after was 37.4

The hill in the first photo is part of the Darling Range/Katamordo, which is the ancient continental shelf of the Yilgarn Craton.

The bordering Perth Basin is mostly flat except for a couple of ancient sand dunes here and there, so it's so strange to see the land just rise seemingly out of nowhere.

It felt so weird climbing to the top, knowing that the rock that I'm standing on is literally billions of years older than the bottom of the hill.

It also marks the end of the Swan Coastal Plain bioregion and the start of the Jarrah Forest bioregion.

I still haven't properly identified the skull in the 6th picture. When I found it, I thought it was a cat skull seeing as there are so many feral cats here. But upon closer inspection, I realise that it's most likely from a juvenile kangaroo.

[sepdet]

How the heck was that bit not [snow]Drift compatible? 🤔

The Driftless Area of the Northcentral US. Where the glaciers missed a spot. Four times.

[sanityshorror]

hello ☺️

I want to ASK , can i make a Oran Doherty Ref-art ?

Of course i linked you ( that He IS youre craton )

-Ted

Have a good day and Take Care of yourself

Fanart is fine but I'd prefer if you didn't make a reference sheet, especially since i really haven't shared much information about him at all. I might make one for him eventually but I have other reference sheets I need to do first.

[moscahbriar]

no audio because i'm uhhh lazy but a tectonic history i made over a course of a couple years (lazy. also technological difficulties). its been finished for a while now, but is pretty rough and im probably going to redo parts of it! but im happy with how it is now. gray = cratons, green lines = transform boundaries, black = orogenies, blue lines = subduction boundaries, and red lines = rifts and such! i forget the term