volcanics

There exists an extended set of early Triassic intermediate-acid volcanics closely related to microdot gold ore in Southwestern Guangxi.

The different origin leads to different metallogenic characteristics of metal minerals associated with the volcanics.

Volcanics mainly growth gas pocket, primary rift and secondary rift, The secondary porosity of clastic rocks is much more developed.

Studies show that bimodal volcanics constitute the most favorable host rock association for volcanogenic massive sulfide deposits.

Blind explosive breccias and welded volcanics belong to breccia-bearing lavas in the classification.

Firstly, the volcanics and shaly sand were separated with FMI static images and conventional logging data.

The clastic sediments are predominantly derived from the felsic volcanics, some basic to intermediate volcanics and minor sediments.

Rock fragments , including volcanics , are common, and the matrix consists largely of kaolin and illite .

The volcanics are most commonly andesitic in composition.

The Gacun deposit is a typical massive sulfide deposit associated with Late Triassic seafloor calc-alkaline felsic volcanics (VHMS).

It is thought that Mesozoic volcanics exist extensively in this area and have the probability of forming buried hill reservoirs.

Its host rock is picritic volcanics , which is different from other volcanic rocks related to iron(copper) ore deposit.

Metallogenic model and prospecting-exploration direction of some volcanics-type uranium deposit in Zhejiang and Jiangxi provinces

the desulfurization of metamorphic basic volcanics provided the sulfur source for gold mineralization;