Aplotite
Definition
A rare variety of gneissic vein rock or fine granitic gneiss, characterized by a well-defined aplitic or microgranular structure. This geological body is structurally composed mainly of quartz, plagioclase feldspar, and white micas, exhibiting a flattened or schistose macroscopic appearance due to metamorphic tectonic pressures exerted along the crystalline axes.
Bilingual Equivalents
- Aplotite
- Aplitic gneiss rock
Grammatical & Source Details
| Inflection Type | Feminine noun, regular structural plural variations with standard geological declensions. |
| Formation | Derived through scientific suffixation, combining the Greek root for simple with the traditional petrographic suffix '-ite'. |
| Spelling / Pronunciation | [a.plo.ˈti.tə] |
| Source | Global Lexicon of Advanced Petrography and Earth Sciences |
Contextual Usage Examples
RO: Geologul a colectat mai multe eșantioane de aplotită din zona de contact a masivului granitic.
EN: The geologist collected several samples of aplotite from the contact zone of the granitic massif.
RO: Analiza microscopică a acestei aplotite a dezvăluit o orientare preferențială a cristalelor de mică.
EN: The microscopic analysis of this aplotite revealed a preferential orientation of the mica crystals.
RO: Filonul de aplotită străbate stratele sedimentare mai vechi, indicând o activitate magmatică tardivă.
EN: The aplotite vein cuts through the older sedimentary layers, indicating late magmatic activity.
Idioms & Phrases
Filon de aplotită / Aplotite vein structure
RO: Formațiune geologică îngustă rezultată din pătrunderea magmei fluide în crăpăturile scoarței terestre.
EN: A narrow geological formation resulting from the intrusion of fluid magma into cracks within the earth's crust.
Structură aplotită / Aplotitic microgranular matrix
RO: Aranjament cristalin extrem de fin și uniform, lipsit de fenocristale vizibile cu ochiul liber.
EN: An extremely fine and uniform crystalline arrangement, lacking phenocrysts visible to the naked eye.
Aplotită metamorfică / Metamorphic aplotite
RO: Varietate de rocă care a suferit recristalizări intense sub acțiunea temperaturilor și presiunilor înalte.
EN: A rock variety that has undergone intense recrystallization under the action of high temperatures and pressures.
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