Cat Clay

Japanese: キャット・クレイ - きゃっとくれい
Cat Clay

...When soils formed from sea or lake sediments containing pyrite FeS 2 dry up, the FeS 2 is oxidized to free sulfuric acid, resulting in a strong acidity (pH 3). The acid sulfate soils formed in this way contain basic ferric sulfate compounds such as jarosite KFe 3 (SO 4 ) 2 (OH) 6, and are yellow like cat droppings, so they are also called cat clays. Various soil types belonging to the Vertisol order exist in the microdepressions of areas of basic rocks and calcareous rocks in the tropics and subtropics. ...

*Some of the terminology that mentions "Cat Clay" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…パイライトFeS2を含む海底または湖底の堆積物から生成した土壌が乾陸化すると,FeS2が酸化されて遊離の硫酸が生じ強酸性(pH3)になる。このようにして生成した酸性硫酸塩土壌はジャロサイトKFe3(SO4)2(OH)6などの塩基性硫酸第二鉄化合物を含むためネコの糞のような黄色を呈するのでキャット・クレイともよばれる。 熱帯・亜熱帯の塩基性岩や石灰質岩からなる地域の微凹地にはバーティソル目に属する種々の土壌型が存在する。…

※「キャット・クレイ」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

<<:  Cat People

>>:  CAT - CATV

Recommend

Mondory

...In this way, the "King's Theatre"...

Heinrich von Ofterdingen

A legendary medieval German poet. The oldest work ...

Ninjutsu - Ninjutsu

One of the Japanese martial arts, it refers to te...

Matsumoto Domain

A domain that ruled over the Matsumoto region of ...

Ooyake - Ooyake

...the symbol of the unity of the State and of th...

Compression ignition engine

...There have been many other attempts to achieve...

Shintoriso

The name of a Gagaku piece. It is a type of Goryeo...

Boa constrictor

… [Takahiro Matsui]. … *Some of the terminology t...

Romanist (English spelling) Romanisten [Netherlands]

16th century Netherlandish painters who studied in...

Bright, John

Born 16 November 1811 in Rochdale, Lancashire [Die...

Erogram - Erogram

⇒Aerogram Source: About Shogakukan Digital Daijise...

Brown, AW

...He died when landing at his destination), foll...

Yoshitoki Takahashi

Year of death: Bunka 1.1.5 (1804.2.15) Year of bir...

Koyumi-so - Oyumi-no-sho

This manor was located in Niwa County, Owari Provi...

Hasan-e Ṣaabbāḥ (English spelling)

?-1124 He was the first da'i (propagandist, mi...