phase-2-enzyme 发表于 2025-3-28 14:38:54
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http://reply.papertrans.cn/99/9841/984086/984086_42.png哄骗 发表于 2025-3-29 01:38:26
,Crystal-rich volcaniclastics—pyroclastic or epiclastic?,this chapter we show that their origins may be diverse, involving the influence of pyroclastic processes, or epiclastic processes, or combinations of both. Having dealt with pyroclastic and epiclastic processes in preceding chapters, we can thus use this type of deposit to illustrate the relationshifinale 发表于 2025-3-29 05:18:51
Classification of modern and ancient volcaniclastic rocks of pyroclastic and epiclastic origins,ed, indurated and metamorphosed volcaniclastic rocks of the rock record, stressing the problems, and the caution needed in giving names, even with basic genetic meanings, to such rocks. This is followed by a discussion of descriptive lithological criteria and their relevance in determining the genesgrounded 发表于 2025-3-29 08:55:18
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http://reply.papertrans.cn/99/9841/984086/984086_49.png神刊 发表于 2025-3-30 06:27:59
Modern pyroclastic fall deposits and their eruptions,tuffs which occur near the vent on a number of volcanoes are described. Criteria for distinguishing these from welded ignimbrites (Ch. 8) and a thermal facies model for pyroclastic fall deposits are also presented.