pisolitic การใช้

• These are magnetite, titanomagnetite, massive hematite and pisolitic ironstone deposits.
• The Kimba district is dominated by calcareous earths, containing distinctive calcrete profiles and varying degrees of development, with minor ferruginous red-brown earths and local pisolitic regions.
• The last plants to die were in depressions, in shaded areas or amongst leaf litter; and the eleven survivors were all on road shoulders, where they benefited from road pisolitic laterite.
• A company called BC Iron, which takes its name from the Bonnie Creek  paleochannel system of ancient river beds in the Pilbara region of Western Australia, believes it has a chance of proving up between 200 million and 600 million tonnes of pisolitic ( pea-shaped ) iron oxide in what was once a diamond exploration location.