How was the Bushveld Complex formed?
Origin and formation Vast quantities of molten rock from Earth’s mantle were brought to the surface through long vertical cracks in Earth’s crust—huge arcuate differentiated lopolithic intrusions—creating the geological intrusion known as the Bushveld Igneous Complex.
What is the extent of the Bushveld Complex?
…and most famous is the Bushveld Complex in South Africa, which is 9 km (5.6 miles) thick and covers an area of 66,000 square km (about 25,500 square miles). It was intruded nearly 2.1 billion years ago and is the largest repository of magmatic ore deposits in the world.
What is the formula of chromite?
Chromite, a brownish black cubic mineral belonging to the spinel group, is the only ore mineral from which metallic chromium and chromium compounds are obtained. It has the chemical formula FeCr2O4, and a theoretical composition of 32.0% FeO and 68.0% Cr2O3.
Where is the Bushveld Complex in South Africa?
The Bushveld Complex (BC), located in northern South Africa, is a Paleoproterozoic Large Igneous Province ~2 Ga in age. It is the world’s largest layered mafic intrusion and boasts the highest concentration of Platinum Group Elements (PGE).
Which is the subject of complex formation titration?
Titration of metal ions with a standard solution of a suitable ligand will be the subject of this unit . Complexes are compounds formed from combination of metal ions with ligands (complexing agents). A metal is an electron deficient species while a ligand is an electron rich, and thus, electron donating species.
What kind of rocks are in the Bushveld Complex?
Fig. 1 Geologic map of the Bushveld Complex and surrounding rocks. Stars indicate the 3 principal lobes to the east, west and north. Note the dashed line, which indicates the predicted sub-surface extent of the complex. After Zientek et al. (2014).
How big is the Bushveld Igneous Complex in South Africa?
The complex has its geographic centre located north of Pretoria in South Africa at about 25° S and 29° E. It covers over 66,000 km 2 (25,000 sq mi), an area the size of Ireland . The complex varies in thickness, in places reaching 9 kilometres (5.6 mi) thick.
