The IgarapÃ© Bahia gold deposit has developed from weathering of a near-vertical hydrothermal Cu (Au) mineralization zone. The unweathered bedrock composed of chlorite schists is mainly metamorphosed basalts, pyroclastic and clastic sedimentary rocks and iron formation.
So what exactly is Bitcoin? Bitcoin is a digital currency and digital payment system that allows people to send and receive Bitcoins â or digital tokens â to anyone, anywhere in the world. It runs on a decentralized network of computers in which all transactions are recorded, verified and updated by technology known as blockchain, which is akin to an online public ledger.
What is Bitcoin worth today? Bitcoin is trading at Â£7,840.81 ($10,930.39) on February 21 - which is down 2.24 per cent on the previous day when it held up past the $11,000 mark. Trading has been extremely volatile with large swings up and down as regulators worldwide have signalled a crackdown on the Ponzi scheme cryptocurrency.