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What is VMS? Assemblages of mostly sulfide minerals that develop on the seafloor at locations of concentrated hydrothermal discharge, relates to a kind of ore deposit that’s mined from existing oceanic crust formed underwater are Volcanogenic Massive Sulfides (VMS) Deposit. ...
Geology 101 is the study of the Earth and its materials, structures, processes, and history. It is a broad field that encompasses many different disciplines, including mineralogy, petrology, paleontology, and geophysics. Geologists study the Earth’s physical features, including its rocks, ...
Unveiling the Mysteries of Igneous Rocks Introduction: Igneous rocks, born from the fiery depths of the Earth, hold a unique place in the geological tapestry. Formed through the solidification of molten magma or lava, these rocks play a pivotal role ...
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In addition to plagioclase feldspar and pyroxene, dolerite may contain a variety of accessory minerals. Some of the most common accessory minerals found in dolerite include: Olivine: This is a green mineral that is common in many types of igneous rocks, including dolerite. It is often found as smallRead more
In addition to plagioclase feldspar and pyroxene, dolerite may contain a variety of accessory minerals. Some of the most common accessory minerals found in dolerite include:
Olivine: This is a green mineral that is common in many types of igneous rocks, including dolerite. It is often found as small, rounded crystals.
Magnetite: This is a black, metallic mineral that is commonly found in dolerite. It is often present in small, rounded grains.
Ilmenite: This is a dark, metallic mineral that is also commonly found in dolerite. It is often present as small, elongated crystals.
Apatite: This is a phosphate mineral that is commonly found in igneous rocks. It is often present as small, elongated crystals or as tiny, needle-like crystals.
Zircon: This is a common accessory mineral in many types of igneous rocks, including dolerite. It is often present as small, rounded crystals.
Biotite: This is a dark-colored mica mineral that is sometimes present in dolerite. It is often found as small flakes or grains.
Other possible accessory minerals in dolerite may include hornblende, orthoclase feldspar, quartz, and pyrite, among others. The specific mineral assemblage in a given dolerite sample may depend on factors such as the age of the rock, the location where it was formed, and the cooling history of the magma.
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