Definition of gossan in English:

gossan

noun ˈɡɒz(ə)nˈɡɑsən

mass nounMining Geology

An iron-containing secondary deposit, largely consisting of oxides and typically yellowish or reddish, occurring above a deposit of a metallic ore.
〔地质，矿〕铁帽
Example sentencesExamples
- Some of these veins reached the surface where, in the enclosing gossan, the stibnite has been subjected to oxidation.
- Most are free of matrix, although some of the paler green or greenish-yellow groups are on gossan and are associated with cream to bluish cerussite.
- Here unusually lustrous crystals to 2.5 cm across occurred in limonite-malachite gossan.
- In deposits that have been uplifted and exposed on land, the upper sulphides and oxides are invariably oxidized and weathered to a variety of secondary minerals (‘gossan’) by circulating meteoric water.
- It was found in gossan from a dump of one of the small mines on the southeastern side of the mountain on the World's Fair claim group.

Origin

Late 18th century: of unknown origin.

Definition of gossan in US English:

gossan

nounˈɡäsənˈɡɑsən

Geology Mining

An iron-containing secondary deposit, largely consisting of oxides and typically yellowish or reddish, occurring above a deposit of a metallic ore.
〔地质，矿〕铁帽
Example sentencesExamples
- In deposits that have been uplifted and exposed on land, the upper sulphides and oxides are invariably oxidized and weathered to a variety of secondary minerals (‘gossan’) by circulating meteoric water.
- It was found in gossan from a dump of one of the small mines on the southeastern side of the mountain on the World's Fair claim group.
- Here unusually lustrous crystals to 2.5 cm across occurred in limonite-malachite gossan.
- Most are free of matrix, although some of the paler green or greenish-yellow groups are on gossan and are associated with cream to bluish cerussite.
- Some of these veins reached the surface where, in the enclosing gossan, the stibnite has been subjected to oxidation.

Origin

Late 18th century: of unknown origin.

单词	gossan
释义	Definition of gossan in English: gossan noun ˈɡɒz(ə)nˈɡɑsən mass nounMining Geology An iron-containing secondary deposit, largely consisting of oxides and typically yellowish or reddish, occurring above a deposit of a metallic ore. 〔地质，矿〕铁帽 Example sentencesExamples Some of these veins reached the surface where, in the enclosing gossan, the stibnite has been subjected to oxidation. Most are free of matrix, although some of the paler green or greenish-yellow groups are on gossan and are associated with cream to bluish cerussite. Here unusually lustrous crystals to 2.5 cm across occurred in limonite-malachite gossan. In deposits that have been uplifted and exposed on land, the upper sulphides and oxides are invariably oxidized and weathered to a variety of secondary minerals (‘gossan’) by circulating meteoric water. It was found in gossan from a dump of one of the small mines on the southeastern side of the mountain on the World's Fair claim group. Origin Late 18th century: of unknown origin. Definition of gossan in US English: gossan nounˈɡäsənˈɡɑsən Geology Mining An iron-containing secondary deposit, largely consisting of oxides and typically yellowish or reddish, occurring above a deposit of a metallic ore. 〔地质，矿〕铁帽 Example sentencesExamples In deposits that have been uplifted and exposed on land, the upper sulphides and oxides are invariably oxidized and weathered to a variety of secondary minerals (‘gossan’) by circulating meteoric water. It was found in gossan from a dump of one of the small mines on the southeastern side of the mountain on the World's Fair claim group. Here unusually lustrous crystals to 2.5 cm across occurred in limonite-malachite gossan. Most are free of matrix, although some of the paler green or greenish-yellow groups are on gossan and are associated with cream to bluish cerussite. Some of these veins reached the surface where, in the enclosing gossan, the stibnite has been subjected to oxidation. Origin Late 18th century: of unknown origin.
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