Long before the oil boom, archaeological digs uncovered a nearly complete duck-billed dinosaur fossil with skin,bones and tendons preserved in sandstone.
凭借着完善的质量体系、稳定的产品品质及良好的用户口碑,米伽砂岩还获得“广东省高新技术产品”。
With perfect quality system, stable product quality and good reputation,Mega sandstone also received the"high-tech products in Guangdong province".
However, Sedona's most popularattraction is the breathtaking array of red sandstone formations that create a striking red and orange backdrop to the town.
因为砂岩主要是无放射性的石英,泥岩放射性主要是因为粘土中的钾同位素,以及吸附的铀和钍。
This is because sandstones are usually nonradioactive quartz, whereas shales are naturally radioactive due to potassium isotopes in clays, and adsorbed uranium and thorium.
年,赫伯特・胡佛总统签署了建立拱门国家纪念碑的立法,以保护拱门,尖顶,平衡岩石和其他砂岩地层。
In 1929, President Herbert Hoover signed the legislation creating Arches National Monument, to protect the arches, spires, balanced rocks,and other sandstone formations.
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