鉀法測定年齡 的英文怎麼說
中文拼音 [jiǎfǎcèdìngniánlíng]
鉀法測定年齡
英文
calcium potassium dating- 鉀 : 名詞[化學] potassium (19號元素, 符號 k)
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 年 : Ⅰ名詞1 (時間單位) year 2 (元旦或春節) new year 3 (歲數; 年紀) age 4 (一生中按年齡劃分的階...
- 齡 : 名1. (歲數) age; years 2. (年限) length of time; duration 3. (某些生物體發育過程中不同的階段) instar
- 測定 : determine; determination; setting-out; admeasurement; assignment; assay; finding
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It was dated by the potassium-argon method to 1. 8 million years old.
由鉀氬法測定其年齡為180萬年。It was dated by the potassium - argon method to 1. 8 million years old
由鉀?氬法測定其年齡為180萬年。The author suggests that for those kinds of samples like ophiolite which formed in the underwater environment and had very low potassium content, it should be better to determine their formation age by the sm - nd method as it is less sensitive to alteration. however, the step heating 40ar - 39ar spectra could often reflect the influence of later geological events on isotope system
認為對蛇綠巖這類形成於水下環境,含鉀極低的樣品,其巖體的形成年齡宜選用對蝕變影響反應不明顯的sm - nd方法測定;但階段升溫~ (Calcium - potassium dating
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