鈾鉛 的英文怎麼說
中文拼音 [yóuqiān]
鈾鉛
英文
uranium lead-
When the uranium disintegrates, it changes into lead.
當鈾蛻變時，它變成了鉛。Lead - uranium ratio
鉛鈾比率There is a close relation between mesozoic tectonic evolution, fluid evolution, petrogenesis and mineralization in the manzhouli - e ' erguna region in the northeast of the northern orogenic belt, china, and three evolution stages of the mesozoic tectonic - fluid - petrogenetic and metallogenetic system are proposed out : 1 ) acompanied by ree and cu mineralization, the calc - alkaline volcanic rocks and mantle - crust mixed type granite occurred under the regional tension tectonic background caused by the mongolia - okhotsk residual ocean that was closing in scissors form in the early - middle jurassic. 2 ) acompanied by pb, zn and ag mineralization, the calc - alkaline and alkaline volcanic rocks occurred under the regional shear - compression tectonic background in the late jurassic. 3 ) acompanied by u, f, pb, zn and ag mineralization, the caic - alkaline and alkaline volcanic rocks occurred under the regional tension tectonic background in the early cretaceous
摘要本文討論了北方造山帶東北段滿洲里額爾古納地區及其毗鄰區中生代構造流體成巖成礦系統及其演化的三個不同階段： 1 ）早中侏羅世張性「似裂谷環境」下所形成的中基性堿性火山巖、同熔性花崗巖及深源流體活動形成的稀土礦床和斑巖性銅鋁礦床； 2 ）晚侏羅世擠壓剪切環境下所形成的酸性火山巖、斑巖類及深源流體活動所形成的鉛鋅銀礦床； 3 ）早白堊世張性環境下所形成的基性堿性火山巖及深源流體活動所形成的鈾礦床、金銀礦床及螢石礦床。Transmission electron microscopy : the testis was cut into fragments ( 1mm x 1mm x 1mm ), fixed in 2. 5 % glutaraldehyde made up in 0. 1 m phosphate buffer ( ph 7. 2 ), postfixed in 1. 0 % oso4, dehydrated in a progressive ethanol and acetone solution, embedded in epon812, sectioned with lkb ultramicrotome, and stained with urangl acetate followed by lead citrate, then observed with h - 600 microscopy and photographed
透射電鏡樣品以2 . 5戊二醛（ ph7 . 2 ， 0 . 1m lpbs緩沖液配製）和1鋨酸雙固定，酒精和丙酮系列脫水， epon812包埋， lkb型超薄切片機切片，醋酸鈾和檸檬酸鉛雙重染色， h - 600透射電鏡下觀察並拍照。分享友人