MINERS DATABASE مطالب مربوط به زمین شناسی ،کانی و سنگ. Ion microprobe UPb zircon age results for the Bishop Tuff (Long Valley; Reid and Coath, 2000) and La Pacana (Schmitt et al, 2002) argue strongly against protracted preeruptive magma storageBy contrast, Long Valley postcaldera lavas show evidence for >100 ka crystal residence (Reid et al, 1997) and remelting of ...
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