【題目】讀巖石圈的物質(zhì)循環(huán)圖(如圖),完成下列要求。

(1)寫出下列代號的物質(zhì)名稱:

甲_______________;乙_______________;丙_______________;丁_______________。

(2)圖中對應(yīng)的地質(zhì)作用分別是:

A_______________;B_______________;C_______________;D_______________。

(3)圖中箭頭B、D包含的意義分別是:

B______________________________;D______________________________。

【答案】

(1)巖漿巖 沉積巖 變質(zhì)巖 巖漿(4分)

(2)外力作用 變質(zhì)作用 重熔再生作用 冷卻凝固(巖漿活動)(4分)

(3)已生成的巖石在一定溫度、壓力作用下發(fā)生變質(zhì)形成變質(zhì)巖,地球內(nèi)部的巖漿,經(jīng)過冷卻凝固形成巖漿巖(2分)

【解析】

試題分析:

(1)巖漿丁活動形成巖漿巖甲;巖漿巖經(jīng)過外力作用形成沉積巖乙;巖漿巖經(jīng)過變質(zhì)作用形成變質(zhì)巖丙;沉積巖經(jīng)過變質(zhì)作用形成變質(zhì)巖丙;變質(zhì)巖經(jīng)過外力作用形成沉積巖乙;各類巖石又可重熔形成新的巖漿。

(2)巖漿丁經(jīng)過巖漿活動D形成巖漿巖甲;巖漿巖經(jīng)過外力作用A形成沉積巖乙;巖漿巖經(jīng)過變質(zhì)作用B形成變質(zhì)巖丙;沉積巖經(jīng)過變質(zhì)作用B形成變質(zhì)巖丙;變質(zhì)巖經(jīng)過外力作用A形成沉積巖乙;;各類巖石又可重熔再生作用C形成新的巖漿。

(3)變質(zhì)作用B,巖漿活動D,都是在高溫、高壓條件下形成的;變質(zhì)作用B是已生成的巖石在一定溫度、壓力作用下發(fā)生變質(zhì)形成變質(zhì)巖;巖漿活動D是地球內(nèi)部的巖漿,經(jīng)過冷卻凝固形成巖漿巖。

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