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176:. For instance, the shape of a vesicle can provide an indication of the velocity of the eruption. When vesicles form within the lava they are spherical in shape. If the eruption is turbulent the vesicles will deform and become elongated in shape. If the velocity is low they will retain their spherical shape as in the case of Pele's tears.
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Under the microscope very tiny Pele's tears (less than 1 μm) can be found within the cavities of Pele's hair. This would suggest they formed prior to being trapped within the strand and supports a different mechanism for formation. It has been considered that they became trapped during transport
147:
Pele's tears are also found entangled within fine strands of volcanic glass known as Pele's hair and it was considered that they formed together under similar conditions. Shimozura (1994) investigated this further and found that the velocity of the erupting lava was the main factor in determining
136:. Whilst it is travelling through the air two things are happening: it is cooling down very rapidly (a process known as quenching) and it is being deformed. The deformation of a droplet depends on the speed at which it is erupted from the volcano, its
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whether Pele's tears or Pele's hair were formed. If the velocity of the erupting magma is high then Pele's hair is formed and if the velocity is low the formation of Pele's tears is favoured.
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because trapped within the glass droplet are bubbles of gas and particles called vesicles. When these are analyzed they can provide a great deal of information about the mechanisms of an
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203:. When the gases trapped within the vesicles of Pele's tears are analyzed they can provide a great deal of information about the chemical composition of the
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Moune, Séverine; Faure, François; Gauthier, Pierre-J.; Sims, Kenneth W. W. (2007). "Pele's hairs and tears: Natural probe of volcanic plume".
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rises, the pressure decreases and the gases come out of solution. Some of these gases escape and some become trapped in the
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Shea, Thomas; Houghton, Bruce F.; Gurioli, Lucia; Cashman, Katharine V.; Hammer, Julia E.; Hobden, Barbara J. (2010).
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The formation of these tears is a complex process depending on a number of different factors as a tiny droplet of
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Shimozuru, Daisuke (1994). "Physical parameters governing the formation of Pele's hair and tears".
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drops formed when airborne particles of molten material fuse into tearlike drops of
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translation: "nā waimaka o Pele") are small pieces of solidified
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and help to understand the complex processes occurring within
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and gases known as volatiles. At high pressures within the
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101:. Pele's tears is primarily a scientific term used by
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108:Pele's tears, like Pele's hair, are named after
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314:Journal of Volcanology and Geothermal Research
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49:of all important aspects of the article.
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45:Please consider expanding the lead to
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70:Assorted shapes of Pele's tears from
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393:USGS Photo Glossary: Pele's tears
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793:1955 Hawaiian submarine eruption
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168:Pele's tears are interesting to
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889:Hawaiian–Emperor seamount chain
884:Hawaiʻi Volcanoes National Park
874:Evolution of Hawaiian volcanoes
209:explosive nature of an eruption
37:may be too short to adequately
47:provide an accessible overview
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899:Hawaiian Volcano Observatory
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78:for scale in lower right.
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879:Haleakalā National Park
268:Bulletin of Volcanology
152:in the eruptive plume.
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640:French Frigate Shoals
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179:The composition of a
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156:Scientific importance
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572:East Molokai Volcano
567:West Molokai Volcano
244:Prince Rupert's drop
919:Mauna Loa eruptions
818:Keanakakoi eruption
368:2010JVGR..190..271S
326:2007JVGR..164..244M
280:1994BVol...56..217S
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429:Hawaiian volcanism
288:10.1007/BF00279606
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904:Kīlauea eruptions
894:Hawaiian eruption
823:ʻAilāʻau eruption
784:Notable eruptions
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660:Lisianski Island
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362:(3–4): 271–289.
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41:the key points
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939:Pele's tears
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929:Pele (deity)
828:Halemaʻumaʻu
670:Midway Atoll
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562:Penguin Bank
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229:Apache tears
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164:Pele's tears
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83:Pele's tears
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55:October 2016
52:
36:
34:lead section
975:Volcanology
934:Pele's hair
914:Limu o Pele
869:ʻAʻā (lava)
838:Kīlauea Iki
476:Kīlauea Iki
239:Pele's hair
234:Limu o Pele
99:Pele's hair
964:Categories
650:Kure Atoll
515:Kahoʻolawe
250:References
853:Puʻu ʻŌʻō
843:Mauna Ulu
786:and vents
715:Daikakuji
697:Seamounts
665:Maro Reef
552:West Maui
547:Haleakalā
504:Mauna Kea
494:Mauna Loa
488:Mauna Ulu
484:Puʻu ʻŌʻō
296:129172020
183:includes
142:viscosity
124:Formation
118:volcanoes
85:(closest
76:U.S. dime
72:Mauna Ulu
39:summarize
609:Waiʻanae
589:Honolulu
557:Molokaʻi
499:Hualālai
462:Māhukona
442:Windward
431:topics (
223:See also
213:volcanos
189:crystals
174:eruption
114:Hawaiian
87:Hawaiian
775:Yuryaku
755:Nintoku
725:Hancock
720:Detroit
710:Colahan
695:Emperor
630:Leeward
599:Koʻolau
578:Niʻihau
472:Kīlauea
467:Hawaiʻi
364:Bibcode
322:Bibcode
276:Bibcode
862:Topics
740:Kimmei
705:Abbott
655:Laysan
594:Kaʻena
536:Lānaʻi
529:Kaʻula
522:Kauaʻi
509:Kohala
294:
140:, the
112:, the
770:Yomei
765:Suiko
750:Meiji
735:Kammu
730:Jingū
680:Nihoa
632:Isles
584:Oʻahu
444:Isles
352:(PDF)
292:S2CID
197:magma
760:Ojin
745:Koko
542:Maui
433:list
201:melt
185:lava
130:lava
110:Pele
91:lava
372:doi
360:190
330:doi
318:164
284:doi
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
