caves Earth Science

4 个科学问题 · 地球科学 Earth Science

本页目录

石笋的年层为什么能当气候计时器?

Why can stalagmite layers act as a climate clock?

石笋每年增长一圈,其厚度和同位素组成随雨季、温度而变化,定年后可逐年重建季风强弱。
Stalagmites grow a layer each year; their thickness and isotopes track rainfall and temperature, so dated samples rebuild monsoon history year by year.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

舒良树 主编,《普通地质学》第3版(曾获全国首届优秀教材一等奖)

Shu Liangshu ed., General Geology, 3rd ed. (winner of the 1st National Excellent Textbook Award)

#石笋 #季风

为什么洞穴会生成钟乳石?

Why do caves form stalactites?

含重碳酸钙的水滴从洞顶向下滴落时,溶解的二氧化碳部分逸出,碳酸钙便一点点沉淀,自洞顶向下堆积成钟乳石。
As drips of calcium-bicarbonate-rich water seep from the cave ceiling, some of the dissolved carbon dioxide escapes, so calcium carbonate precipitates bit by bit and builds the stalactite downward from the ceiling.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source

出处备注:作者 / 书名 / 版次 / 出版社 / 年份齐备,仅缺独立比对证据;已在可信度报告单列披露,不再重复核验。

Ford & Williams,《洞穴与洞穴岩溶》,Academic Press,2007

D. C. Ford and M. W. Williams, Caves and Cave Karst, Academic Press, 2007

#钟乳石 #碳酸钙 #沉积

蓝洞为什么是蓝色的?

Why are blue holes blue?

蓝洞是海里下沉的圆形深坑,坑壁陡峭、水极深,阳光中红光被吸收、蓝光散射回来,看起来就蓝得发亮。
A blue hole is a deep round sea pit with steep walls; red light is absorbed and blue light scatters back, making it glow blue.
难度 入门 · 适合 小学低段(6-8) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

舒良树 主编,《普通地质学》第3版(曾获全国首届优秀教材一等奖)

Shu Liangshu ed., General Geology, 3rd ed. (winner of the 1st National Excellent Textbook Award)

#蓝洞 #海洋

溶洞里倒挂在洞顶的石钟乳是怎么长出来的?

How do the hanging stalactites in caves grow?

含碳酸钙的水从洞顶滴下,水分蒸发后石灰质一点点淀积,向下长成冰锥状的石钟乳。
Water rich in calcium carbonate drips from the ceiling; as it evaporates the mineral builds up, growing downward into spike-like stalactites.
难度 入门 · 适合 小学低段(6-8) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

舒良树 主编,《普通地质学》第3版(曾获全国首届优秀教材一等奖)

Shu Liangshu ed., General Geology, 3rd ed. (winner of the 1st National Excellent Textbook Award)

#溶洞 #石钟乳