Kimberlites reveal 2.5-billion-year evolution of a deep, …

Kimberlites, small-volume volcanic rocks that are the source of most diamonds, offer rare insights into aspects of the composition of the Earth's deep mantle. …

Kimberlite exploration using integrated airborne …

successful tool in kimberlite exploration. The installation of a digital AGG system on a helicopter led to the first airborne gravity gradient cum magnetic cum electromagnetic …

Kimberlites

Kimberlite rocks and deposits are the eruption products of volatile-rich, silica-poor ultrabasic magmas that originate as small-degree mantle melts at depths in excess of …

Kimberlites, Kimberlite Exploration, and the Geomorphic …

All of the Botswana diamond production is extracted from a group of volcanic rocks known as kimberlites. From an exploration perspective, a total of 405 …

HANDBOOK ON KIMBERLITE EXPLORATION AND …

Kimberlite is defined as a volatile-rich, potassic, ultrabasic igneous rock that occurs as small volcanic pipes, dykes and sills. It has an inequigranular texture resulting from the …

Kimberlites: The only volcanic deposits we know …

Using sensitive radioisotope tracers, we can map the evolution of their mantle sources through time. Our results show that, …

Kimberlite: A Unique Probe into the Deep Earth

Kimberlite melts excoriate the rocks they pass through, tearing up chunks of the mantle from depths of several hundred kilometers. They may (but not always) bear …

Genesis and evolution of kimberlites

Serpentine, a Mg-silicate mineral indicative of hydrous alteration, is a ubiquitous component of kimberlites and crystallizes at submag-matic temperatures (after magma …

Kimberlites: Earth's Diamond Delivery System | Gems

There are two main magma types that carry natural diamonds to the surface. These magmas crystallize on cooling into volcanic rocks known as kimberlite …

Genesis and evolution of kimberlites | Nature Reviews Earth …

Kimberlites are rare volcanic rocks with unusually deep origins. This Review explores the origin and evolution of kimberlite melts and their insights into mantle …