Asia
Afrika
Eropah
lain
Amerika Utara
Amerika Selatan
Australia
Germany, Greece, Italy, Scotland, Turkey
tanah penggembalaan, mid-Atlantik ridge
Bolivia, Brazil, Kolumbia, venezuela
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland