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Barren lava fields and flows

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English name Barren lava fields and flows Open code browser    Diagram icon

EUNIS habitat type code   H6.24 Level   4
Edition   EUNIS Habitat Classification 2012 - a revision of the habitat classification descriptions.

Description ( English )

Hard or porous rocky surfaces and chaotic rock jumbles formed by solidified lava flows originating from volcanoes and fissures of the Palaearctic domaine, unvegetated, occupied by lichens or mosses, or colonized by specialised, relatively sparse herb- or shrub-dominated communities. They are restricted to the Mid-Atlantic ridge and its associated fracture zones, in Iceland and the Macaronesian islands, responsible for a large proportion of the volume of recent lava in the world, to the collision zones and constructive margins of southern Eurasia, in the Mediterranean and Tethyan basins along the folds of the Alpine system, to the Red Sea rim, on the Arabian peninsula, and to the western Pacific rim and island arcs. A range of surface characteristics is presented by lava of differing composition, viscosity and gas content, including pahoehoe or ropy lava, aa, scoria, pumice and pillow lava. A gradient of increasing acidity and viscosity extends from basalts through andesites and dacites to rhyolites.

Source

Devillers, P., Devillers-Terschuren, J. and Vander Linden, C. [edited ETC/BD] (2001)

External links


Relationships with other classifications

Classification Code Title Relation type
EUNIS Habitat Classification 200410 H6.24 Barren lava fields and flows same
EUNIS Habitat Classification 200308 H6.24 Barren lava fields and flows same
EUNIS Habitat Classification 200202 H6.24 Barren lava fields and flows same
EUNIS Habitat Classification 199910 H6.21 Barren lava fields same
EUNIS Habitat Classification 199811 H6.21 Barren lava fields same
EUNIS Habitat Classification 199712 H6.21 Barren lava fields same
Palaearctic Habitat Classification 200112 66.3 Lava flows, lava fields, lava features source
Palaearctic Habitat Classification 199905 66.3 Barren lava fields same
Palaearctic Habitat Classification 1997 66.3 Barren lava fields same
Palaearctic Habitat Classification 1996 66.3   same
Palaearctic Habitat Classification 1993 66.3   same
CORINE Biotopes Classification 1991 66.3   same
CORINE Land Cover 3.3.3. Sparsely vegetated areas n/a
  H Inland unvegetated or sparsely vegetated habitats Go to key navigator, starting with this habitat    Ancestor
  H6 Recent volcanic features Go to key navigator, starting with this habitat    Ancestor
  H6.2 Inactive recent volcanic features    Parent
EUNIS

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