Jump to content

File:Aa large.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Aa_large.jpg (800 × 500 pixels, file size: 87 KB, MIME type: image/jpeg)

Summary

Description
English: Glowing `a`a lava flow front advancing over pahoehoe lava on the coastal plain of Kilauea Volcano, Hawaii. 'A'a (pronounced "ah-ah") is a Hawaiian term for lava flows that have a rough rubbly surface composed of broken lava blocks called clinkers. The incredibly spiny surface of a solidified 'a'a flow makes walking very difficult and slow. The clinkery surface actually covers a massive dense core, which is the most active part of the flow. As pasty lava in the core travels downslope, the clinkers are carried along at the surface. At the leading edge of an 'a'a flow, however, these cooled fragments tumble down the steep front and are buried by the advancing flow. This produces a layer of lava fragments both at the bottom and top of an 'a'a flow.
Date circa 1998
date QS:P,+1998-00-00T00:00:00Z/9,P1480,Q5727902
[1]
Source https://web.archive.org/web/20080127043104/http://volcanoes.usgs.gov/Products/Pglossary/aa.html
Author USGS[2]
Permission
(Reusing this file)
Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

Bahasa Indonesia ∙ català ∙ čeština ∙ Deutsch ∙ eesti ∙ English ∙ español ∙ français ∙ galego ∙ italiano ∙ Nederlands ∙ português ∙ polski ∙ sicilianu ∙ suomi ∙ Tiếng Việt ∙ Türkçe ∙ български ∙ македонски ∙ русский ∙ മലയാളം ∙ 한국어 ∙ 日本語 ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ العربية ∙ فارسی ∙ +/−

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2006-10-23 15:45 Edwardtbabinski 800×500×8 (89587 bytes) Source United States Government http://volcanoes.usgs.gov/Imgs/Jpg/Photoglossary/aa_large.jpg In difference to pāhoehoe, Aa is a term of Polynesian origin, pronounced Ah-ah, rough, jagged, spiny lava.
  • 2005-12-14 16:39 Orborde 800×500×8 (89587 bytes) {{PD-USGov-Interior-USGS}} [http://volcanoes.usgs.gov/9Products/Pglossary/aa.html]

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

copyright status<\/a>"}},"text\/plain":{"en":{"":"copyright status"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":19652,\"id\":\"Q19652\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P6216":"public domain<\/a>"}},"text\/plain":{"en":{"P6216":"public domain"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":1001,\"id\":\"P1001\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"applies to jurisdiction<\/a>"}},"text\/plain":{"en":{"":"applies to jurisdiction"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":30,\"id\":\"Q30\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P1001":"United States of America<\/a>"}},"text\/plain":{"en":{"P1001":"United States of America"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":459,\"id\":\"P459\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"determination method or standard<\/a>"}},"text\/plain":{"en":{"":"determination method or standard"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":60671452,\"id\":\"Q60671452\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P459":"work of the federal government of the United States<\/a>"}},"text\/plain":{"en":{"P459":"work of the federal government of the United States"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P6216 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

copyright status

public domain

applies to jurisdiction: United States of America
determination method or standard: work of the federal government of the United States
media type<\/a>"}},"text\/plain":{"en":{"":"media type"}}},"{\"value\":\"image\\\/jpeg\",\"type\":\"string\"}":{"text\/html":{"en":{"P1163":"image\/jpeg"}},"text\/plain":{"en":{"P1163":"image\/jpeg"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P1163 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

media type

image/jpeg

checksum<\/a>"}},"text\/plain":{"en":{"":"checksum"}}},"{\"value\":\"4c1eb9fd0997a60144f03e8b0a004a640b74f01d\",\"type\":\"string\"}":{"text\/html":{"en":{"P4092":"4c1eb9fd0997a60144f03e8b0a004a640b74f01d"}},"text\/plain":{"en":{"P4092":"4c1eb9fd0997a60144f03e8b0a004a640b74f01d"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":459,\"id\":\"P459\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"determination method or standard<\/a>"}},"text\/plain":{"en":{"":"determination method or standard"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":13414952,\"id\":\"Q13414952\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P459":"SHA-1<\/a>"}},"text\/plain":{"en":{"P459":"SHA-1"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P4092 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

checksum

4c1eb9fd0997a60144f03e8b0a004a640b74f01d

determination method or standard: SHA-1
data size<\/a>"}},"text\/plain":{"en":{"":"data size"}}},"{\"value\":{\"amount\":\"+89587\",\"unit\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q8799\"},\"type\":\"quantity\"}":{"text\/html":{"en":{"P3575":"89,587 byte<\/span>"}},"text\/plain":{"en":{"P3575":"89,587 byte"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P3575 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

data size

89,587 byte

height<\/a>"}},"text\/plain":{"en":{"":"height"}}},"{\"value\":{\"amount\":\"+500\",\"unit\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q355198\"},\"type\":\"quantity\"}":{"text\/html":{"en":{"P2048":"500 pixel<\/span>"}},"text\/plain":{"en":{"P2048":"500 pixel"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P2048 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

height

500 pixel

width<\/a>"}},"text\/plain":{"en":{"":"width"}}},"{\"value\":{\"amount\":\"+800\",\"unit\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q355198\"},\"type\":\"quantity\"}":{"text\/html":{"en":{"P2049":"800 pixel<\/span>"}},"text\/plain":{"en":{"P2049":"800 pixel"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P2049 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

width

800 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current21:15, 24 April 2007Thumbnail for version as of 21:15, 24 April 2007800 × 500 (87 KB)Alfonso"~commonswiki{{Information |Description=[http://volcanoes.usgs.gov/Products/Pglossary/aa.html] This is what is now lava. It used to be what was called magma. Magma is a hot substance that is deep with in the earth. Volcanoes grow just like humans do. They can grow up

Global file usage

The following other wikis use this file:

View more global usage of this file.

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikipedia.org/wiki/File:Aa_large.jpg"