* *是的,没有。* *加勒比海和墨西哥湾的沉积材料和岩石顶部,但海底*理智这篇*由沉积物而不是石头。海洋地壳是由(玄武岩)[1]和[2](辉长岩),火成岩作为你注意到,和沉积材料上面。我们知道,由于钻粉和化石(蛇)[3]:> [!(蛇绿岩截面)[4]][4]>来源:[林克之。金泽][5][6](墨西哥湾)也不例外,在顶部(沉积物)[7],本文说:>“大多数沉积物源于相邻的土地,主要通过河流运输。直接沉淀碳酸钙和矿物质蒸发主要发生在佛罗里达和尤卡坦平台和一些沿海泻湖。深海环境往往是由陆源和生物沉积物泥。”(Davids Jr, R.A.,2017) [1][8] [Caribbean Sea][9] is neither an exception, as remarks Encyclopedia Britannica: >"The ancient sediments overlying the seafloor of the Caribbean, as well as of the Gulf of Mexico, are about a half mile (about one kilometre) in thickness, with the upper strata representing sediments from the Mesozoic and Cenozoic eras (from about 252 million years ago to the present) and the lower strata presumably representing sediments of the Paleozoic and Mesozoic eras (from about 541 to 66 million years ago)" (Menzies,R.J. et al, 2019) [2][10] This article says there is one kilometre of sedimentary materials, enough to [diagenesis][11] to take place and so, there are [sedimentary rocks][12] under the unconsolided sediments. At open oceans diagenesis may have still do not have place and there is only the ophiolitic sequence with thin sediments, but, as you can read [in this related answer][13], Caribean Sea have old igneous rocks with a big stack of sediments above that have litified to sedimentary rocks (coming from continental rivers and carbonaceous platforms), becoming the biggest oil source zone on Earth after Arabian Gulf. -------- 1) [**Davis R.A. (2017)** *"Sediments of the Gulf of Mexico."* In: Ward C. (eds) **Habitats and Biota of the Gulf of Mexico: Before the Deepwater Horizon Oil Spill**. Springer, New York, NY][8] 2) [**Menzies, R.J., Ogden, J.C. (2019)** *"Caribbean Sea."* In: **Encyclopedia Britannica**.][10] [1]: https://en.wikipedia.org/wiki/Basalt [2]: https://en.wikipedia.org/wiki/Gabbro [3]: https://en.wikipedia.org/wiki/Ophiolite [4]: https://i.stack.imgur.com/UL4RD.gif [5]: http://earth.s.kanazawa-u.ac.jp/ishiwata/ophiol_e.htm [6]: https://en.wikipedia.org/wiki/Gulf_of_Mexico [7]: https://en.wikipedia.org/wiki/Sediment [8]: https://link.springer.com/chapter/10.1007/978-1-4939-3447-8_3 [9]: https://en.wikipedia.org/wiki/Caribbean_Sea [10]: https://www.britannica.com/place/Caribbean-Sea [11]: https://en.wikipedia.org/wiki/Diagenesis [12]: https://en.wikipedia.org/wiki/Sedimentary_rock [13]: //www.hoelymoley.com/a/12155/12525