The statocone of Mt. Cemara Lawang is part of The Mt. Bromo-Tengger volcano complex, East Java, Indonesia. Mt. Cemara Lawang is comosed of a sequences of deposits, comprising the big feldspar lava, andesite lava, phreatomagmatic ash fall, phreatic, basalt lava, basaltic andesite lava, andesite lava, alternating layers of pyroclastic fall and flow and the brown ash fall deposits from the oldest …
A wide compositional range of lavas erupted in the Sunda Arc, Indonesia are discussed in detail, with emphasis on the potassic volcanic rocks. Comparison is made with potassic lavas from both convergent-plate margins and within-plate settings.