类别 全部 - fossils

作者:Yvonne Byrne 8 年以前

579

Earth Structure

Earth Structure

Glacial Deposis

Continental Fit

Molten

Subduction

Subtopic

Matching Fossils

Inner Core

mainly made of iron and nickel/ solid

Earth Structure

oceanic crust composed of heavy rocks, silica and magnesium

Outer Core

mainly made of iron / molten