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词汇 porphyroid
分类 英语词汇 英语翻译词典
释义

porphyroid /'pɔːfɪrɒɪd//'pɔrfə,rɔɪd/

英汉-汉英词典
n. 残斑岩
词组 | 习惯用语
您要查找的是不是：
  • parathyroid adj. 副甲状腺的
  • porphyry n. [地]斑岩
  • hypothyroid n. [医]甲状腺功能减退者；机能减退的；甲状腺 adj. [医]甲状腺机能减退的
  • porphyritic adj. 斑岩的
porphyroid n. 残斑岩; 残斑岩的;

网络短语:
clastic porphyroid 碎屑变斑岩
porphyroid d 残斑岩
porphyroid neomorphism 残斑新生变形作用
porphyroid texture 似斑状结构
tuff porphyroid 凝灰火山锥；凝灰残斑岩
fine porphyroid diroite 细粒似斑状闪长岩
英语例句库
  1. The structures often observed in Dushan jade include granular texture, cataclastic texture, porphyroid texture, metasomatic texture, nematoblastic texture, and mylonitization structure occasionally.
    独山玉常具有粒状结构、碎裂结构、残斑结构、熔蚀交代结构，似斑状结构，偶见针状变晶结构和糜棱结构；

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英语百科

Porphyry (geology)

A piece of porphyry
Rhyolite porphyry. Scale bar in lower left is 1 cm.
Diagram of zonation in a porphyry copper deposit
The Tetrarchs, a porphyry sculpture sacked from the Byzantine Philadelphion palace in 1204, Treasury of St. Marks, Venice

Porphyry is a textural term for an igneous rock consisting of large-grained crystals such as feldspar or quartz dispersed in a fine-grained feldspathic matrix or groundmass. The larger crystals are called phenocrysts. In its non-geologic, traditional use, the term porphyry refers to the purple-red form of this stone, valued for its appearance.
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