Geologists study how rivers deposit layers of sediment that gradually form new rock strata over millennia.
地质学家研究河流如何沉积泥沙层，这些层在数千年间逐渐形成新的岩层。
A separate research team led by Soren Lindgren found that sediment deposited by seasonal flooding upstream is building new delta land fast enough to offset a meaningful portion of the projected loss, though not all of it.
From a Cross-Text Connections question · Craft and Structure
Which choice best defines “deposit”?
D — Put money, lay down. “deposit” means put money, lay down.
Which word means “put money, lay down”?
D — deposit. “deposit” means put money, lay down.
deposit — put money, lay down. In Chinese: 存款，沉积.
deposit is pronounced /dɪˈpɒzɪt/.
Geologists study how rivers deposit layers of sediment that gradually form new rock strata over millennia. (地质学家研究河流如何沉积泥沙层，这些层在数千年间逐渐形成新的岩层。)
place, put, lay — all close in meaning to deposit (put money, lay down).
withdraw, remove — each the opposite of deposit (put money, lay down).
Yes. deposit is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
de(down)+posit(place)