岩石循环示意图白板动画

Hand-drawn rock cycle diagram: exactly 4 stages in a circle joined by curved red arrows going clockwise. Top: a small volcano cross-section with a glowing red-orange pool of molten magma under it. Right: a rough dark grey chunk of igneous rock with tiny speckled crystals. Bottom: a neat block of sedimentary rock made of flat tan, brown and cream layers stacked like a cake. Left: a chunk of metamorphic rock with wavy, squeezed, folded stripes. Arrows go from the magma to the igneous rock, from the igneous rock to the sedimentary rock, from the sedimentary rock to the metamorphic rock, and from the metamorphic rock back up to the magma. Exactly four arrows. Nothing else in the picture, plenty of empty space around the circle. Coloured pencil and watercolour marker, clean black ink outlines, warm off-white paper, no text.