الصفحة الرئيسية > Term: trass
trass
A common name in the older literature for unwelded massive ash and pumice-flow deposits. Trass has been used in the production of pozzolan cement. Compare: ignimbrite.
- قسم من أقسام الكلام: noun
- المجال / النطاق: التعدين
- الفئة: تعدين عام; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)