Skip to content
Geology Base
  • Rocks
    • Igneous
    • Metamorphic
    • Sedimentary
  • Mineralogy
  • Home & Garden
    • Home Improvement
    • Garden & Landscaping
    • Building Materials
    • Sustainability
  • More
    • Geomorphology
    • Volcanology
    • Q/A
  • SUBSCRIBE

Subaerial volcanic eruptions

Lava flow types or morphologies: Pahoehoe and aa: Photo credit: Brocken Inaglory, CC BY-SA 3.0, via Wikimedia Commons
Home

Get the Six Lava Flow Types or Morphologies Explained

There are six lava flow types or morphologies: pahoehoe, aa, blocky lava, pillow lava, sheet flow, and lobate. The first three are subaerial, and the

Categories Volcanology
Blocky lava with large, angular, slightly smooth blocks
Home

How Do Blocky Lava Flows Look Like and Form?

Block or blocky lava flows have a fragmented surface with large (usually up to a meter in size), angular to slightly smooth, or planar rubbles,

Categories Volcanology
Pahoehoe vs. aa lava flow differences
Home

How Do Pahoehoes Compare and Contrast with Aa Lava Flows?

This post discussion will compare and contrast pahoehoes and aa subaerial lava flows, highlighting their similarities and differences. To give you a hint, some similarities

Categories Volcanology
Aa lava flow showing clinkers in Hawaii
Home

What Does an Aa Lava Flow Look Like and How Does It Form?

‘A’ā (pronounced “ah-ah”) is a Hawaiian term that describes a lava flow with jagged (sharp and rough) rubbly debris called clinkers, now a geological term accepted

Categories Volcanology
Ropy or pahoehoe lava flow meaning
Home

How Does a Pahoehoe Lava Flow Form and Transition?

Pahoehoe or ropy lava flow is one of the subaerial lava flows, characterized by a smooth, ropy, gently undulating, or hummocky continuous chilled surface or

Categories Volcanology
  • About Us
  • Terms of Use
  • Privacy Policy
  • Cookie Policy
  • Disclaimer
  • Contact Us
© 2023-2025 Geology Base. All Rights Reserved