これが故障です：
* Andesitic magma 組成の中間であるマグマの一種です。つまり、シリカ、マグネシウム、鉄の混合が含まれています。 This composition often results in explosive eruptions 厚い粘性溶岩流。
* Merapi's eruptions are often characterized by fast-moving pyroclastic flows, which are dangerous mixtures of hot gas, ash, and rock fragments.
While Merapi's magma is primarily andesitic, it can also contain small amounts of other magma types, such as basaltic magma which is more fluid and tends to produce effusive eruptions. However, the dominant type is andesitic, leading to its characteristically explosive eruptions.
