recent sediments

基本解释

The recent carbonate sediments of the South China Sea are mainly biogenous.
南海的现代碳酸盐质沉积，主要是生物源。
Results show that the recent sediments are mainly fine-grained composing 90% of silt and clay.
研究结果表明，乐清湾现代沉积主要以细颗粒沉降为主，粉沙和粘土总含量占90%以上；
Recent discoveries of Siberian and Alaskan lake bed sediments leaking large quantities of methane have prompted climatologists to call for more study and satellite monitoring of these regions.
最近发现西伯利亚和阿拉斯加湖床沉积物中有大量甲烷泄漏，促使气候学家呼吁对这些地区进行进一步研究和卫星监测。