how can new land be formed underwater w/o a volcanic eruption? Need help asap.
2007-04-02 12:39:20 · 4 answers · asked by Dria 1 in Science & Mathematics ➔ Earth Sciences & Geology
In the ocean, there are regions where the tectonic plates are pulling apart. As the plates pull apart, molten lava from underneath them comes up and replaces the plates as they separate. This is how sea mounts (under sea mountain chains) form, and how continents are moving apart.
2007-04-02 13:54:39 · answer #1 · answered by shoeless wonder 3 · 0⤊ 0⤋
Maybe I misunderstand what you are asking, but to me land is above water and not below it. Oceanic crust can be formed without volcanic eruption by lithofacation of sediments (due to the pressure of the overburden of other sediments) or from chemical precipitation of salts. In the former case, siliclastics form sandstones, siltstones and shales, whereas the latter case forms limestones, dolostones ("dolomite limestones"), and salt deposits such as halite, sylvanite and gypsum.
2007-04-02 13:44:07 · answer #2 · answered by Amphibolite 7 · 0⤊ 0⤋
There are regions in the ocean where lava is pouring out of the sea bottom.
2007-04-02 12:43:00 · answer #3 · answered by Gene 7 · 0⤊ 0⤋
idk
2007-04-02 12:54:51 · answer #4 · answered by Jordan J 1 · 0⤊ 0⤋