Skarns or tactites are coarse-grained metamorphic rocks that form by replacement of carbonate-bearing rocks during regional or contact metamorphism and metasomatism.

Skarns are rocks that form when magma intrudes a nearby rock mass. The magma, intense heat, chemically active fluids and the nearby rock react with one another to form a new metamorphic rock known as skarn.

矽卡岩(skarn)，一种变质岩，主要由富钙或富镁的硅酸盐矿物组成的变质岩，一般经接触交代作用形成。 矿物成分主要为石榴子石类、辉石类和其他硅酸盐矿物。

2023年4月23日 · Skarn, in geology, metamorphic zone developed in the contact area around igneous rock intrusions when carbonate sedimentary rocks are invaded by large amounts of silicon, aluminum, iron, and magnesium. Many skarns also include ore minerals; several productive deposits of copper or other base metals have been found in and adjacent to skarns.

2007年11月2日 · What links these diverse environments, and what defines a rock as skarn, is the mineralogy. This mineralogy includes a wide variety of calc-silicate and associated minerals but usually is dominated by garnet and pyroxene. Skarns can be …

Skarn, in geology, metamorphic zone developed in the contact area around igneous rock intrusions when carbonate sedimentary rocks are invaded by large amounts of silicon, aluminum, iron, and magnesium. The minerals commonly present in a skarn include iron oxides, calc-silicates (wollastonite,

1 天前 · Phase 1 drilling intersected skarn and hydrothermal alteration typical of the distal zones of a fertile hydrothermal system. The presence of skarn combined with AMT survey results suggesting a deep conductive anomaly, support the potential for a deeper mineralized system. ... Figure 3: Skarn replacement of metavolcanic rock, with prominent ...

Skarns are silicate rocks produced by the interaction between the hot hydrothermal fluids released by crystallizing magma with carbonate rocks – a process known as metasomatism.

A metasomatic rock formed at the contact between a silicate rock (or magmatic melt) and a carbonate rock. It consists mainly of Ca, Mg, Fe and/or Mn silicates which are free from or poor in water.

Skarn is a poorly defined term used in several imprecise ways. It usually refers to a holocrystalline, massive, bedded or banded rock rich in calc-silicate minerals, which may or may not carry ore minerals. It is frequently regarded as the product of metasomatism, pyrometamorphism, or pyrometasomatism.