Comondu-La Purisima
Medan gunung api · Mexico · 780 m
- Tipe
- Medan gunung api
- Negara
- Mexico
- Wilayah
- Eastern Pacific Volcanic Regions / Gulf of California Rift Volcanic Province
- Ketinggian
- 780 m
- Koordinat
- 26.000, -111.920
- Letusan terakhir
- Tidak diketahui
- Kondisi tektonik
- Rift zone / Continental crust (> 25 km)
- Bentuk lahan
- Cluster
- Batuan utama
- Trachyandesite / Basaltic Trachyandesite
Ringkasan geologi
The Comondú-La Purísima volcanic field, located in southern Baja California, west of the Sierra de la Giganta, dates back to the Miocene. However, the youthful morphology of some cinder cones suggested possible Holocene ages (Sawlan, 1991). The youngest lavas form blocky flows with flow ridges and are mostly located in the area between Comondú and the La Purísima river. Vents usually occur along NNW-trending faults, and many lava flows are offset, sometimes repeatedly, along grabens. Both basaltic and andesitic lava flows are present. The former are typically 5-10 m thick, and the latter are up to 60-80 m thick and form dense, glassy flows with subhorizontal fractures.
Riwayat letusan
Garis waktu rinci
Tidak ada catatan letusan.
Tautan eksternal
- Belum ada di Wikipedia (Bahasa Indonesia). Anda dapat berkontribusi di Wikidata.
- 🔗 Halaman asli Smithsonian GVP
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.