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词汇 breccia
释义

Definition of breccia in English:

breccia

noun ˈbrɛtʃɪəˈbrɛtʃəˈbrɛtʃiə
mass nounGeology
  • Rock consisting of angular fragments of stones cemented by finer calcareous material.

    〔地理〕角砾岩

    copious quantities of breccia
    Example sentencesExamples
    • A volcanic or igneous breccia forms during eruptive activities.
    • It weights 751 grams and consists of breccia - sintered fragments of various minerals from lunar continents.
    • Intrusive breccias can be the host for metallic ore deposits and aesthetic mineral specimens.
    • In some breccia zones the rock fragments exhibit partial melting and reaction rims.
    • Breccias are associated with mechanical weathering in regions of high tectonic activity.

Derivatives

  • brecciate

  • verb ˈbrɛtʃɪeɪtˈbrɛ(t)ʃ(i)ˌeɪt
    [with object]Geology
    • Cause (rock) to break down into angular fragments.

      many deep-water limestones have been brecciated and then recemented
      Example sentencesExamples
      • Fractures due to faulting were found to traverse and brecciate the fluorite and calcite in some places.
      • As the impacting body forces its way into the Earth's crust, it brecciates and melts the rocks in its way.
      • The explosive expansion brecciates and mixes the magmatic and sedimentary material.
  • brecciation

  • noun ˌbrɛtʃɪˈeɪʃnˌbrɛ(t)ʃiˈeɪʃən
    mass nounGeology
    • The process of breaking down rock into angular fragments.

      hydraulic fracturing gave rise to brecciation of the banded rocks
      Example sentencesExamples
      • The brecciation is probably a result of removal of evaporites from the underlying Moose River Formation.
      • This would best be done by careful engineering - noting areas of brecciation and serpentinisation.
      • It is composed of a silicified core and flanked by more friable sulfides showing evidence of later tectonic brecciation.

Origin

Late 18th century: from Italian, literally 'gravel', ultimately of Germanic origin and related to break1.

Definition of breccia in US English:

breccia

nounˈbrɛtʃiəˈbreCHēə
Geology
  • Rock consisting of angular fragments cemented together.

    〔地理〕角砾岩

    copious quantities of breccia
    Example sentencesExamples
    • Intrusive breccias can be the host for metallic ore deposits and aesthetic mineral specimens.
    • In some breccia zones the rock fragments exhibit partial melting and reaction rims.
    • A volcanic or igneous breccia forms during eruptive activities.
    • Breccias are associated with mechanical weathering in regions of high tectonic activity.
    • It weights 751 grams and consists of breccia - sintered fragments of various minerals from lunar continents.

Origin

Late 18th century: from Italian, literally ‘gravel’, ultimately of Germanic origin and related to break.

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