MJR لیوان سنگ معادن کلسیت
MINERS DATABASE | مطالب مربوط به زمین شناسی ،کانی و سنگ. Ion microprobe U-Pb 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 storage.By contrast, Long Valley post-caldera lavas show evidence for >100 ka crystal residence (Reid et al., 1997) and ...
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