Amygdaloidal Basalts Texture and Composition
Amygdaloidal basalts are basalt rocks with vesicles partially or fully filled with secondary minerals. The filled vesicles are called amygdales,
Amygdaloidal basalts are basalt rocks with vesicles partially or fully filled with secondary minerals. The filled vesicles are called amygdales,
Sheeting, exfoliation, or unloading is a physical weathering process. It happens when deeply buried rocks break into concentric slabs or
Kelp forests refer to a dense growth of different kelp species in nutrient-rich, cool, shallow water whose grouping resembles land
Salt weathering or salt crystal growth is physical or mechanical weathering. It is caused by the growth, expansion, or hydration
Ice or frost wedging is a mechanical or physical weathering process. It happens when water repeatedly seeps into rock cracks
Pyroclastic flows, pyroclastic density currents (PDCs), or pyroclastic clouds are dense, ground-hugging, hot gases laden with volcanic debris racing down
Andesite is an intermediate volcanic or extrusive igneous rock. Intermediate rocks are moderate in silica (52-63 wt.%), mafic, and felsic
Andesitic magma or lava has an intermediate composition with moderate silica content between 57 and 63 wt. %. Its composition
Magma refers to hot, molten, or semi-molten rocks under the Earth’s surface, while lava refers to magma that makes it
Ultramafic is a common term in geology, GEOsciences, Earth sciences, or geography. It is commonly used in igneous rocks, their