Plutonic rocks consisting of pyroxene, pigeonite and plagioclase, the source of cumulate eucrites.
包、易变、和斜长等火成岩,来自于推喷发。
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Earth must have gotten its water around the same time the eucrites did—which has big implications.
因此地球应该和个小行星群同一时期有—推理影响重大。
The scientists discovered that the chemical signature of water on Earth matches the signature of water in an ancient group of asteroids called eucrites.
科学家们发现地球上化学特征与一个名为钙长辉长陨石古老小行星群上化学特征匹配。
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