Geiser di Mars: Perbedaan antara revisi

Konten dihapus Konten ditambahkan
Tidak ada ringkasan suntingan
 
(5 revisi perantara oleh 4 pengguna tidak ditampilkan)
Baris 1:
[[FileBerkas:Geysers on Mars.jpg|thumbjmpl|200px|Gambaran seniman yang menunjukkan semburan bermuatan pasir meletup dari geiser-geiser di Mars. (Diterbitkan oleh NASA; seniman: [[Ron Miller (artis dan penulis)|Ron Miller]].)]]
 
'''Geiser Mars''' (atau '''semburan {{chem|CO|2}}''') adalah fitur permukaan di planet [[Mars]] yang diduga terbentuk oleh letupan gas dan debu kecil yang terjadi di wilayah kutub selatan Mars selama pencairan musim semi. "Bintik-bintik bukit gelap" dan "laba-laba"–atau ''araneiform''<ref name=Portyankina2014 >{{cite book|chapter=Araneiform|journal=Encyclopedia of Planetary Landforms |page=1 |date=2014|first=Ganna|last=Portyankina|doi= 10.1007/978-1-4614-9213-9_540-1|isbn=978-1-4614-9213-9 }}</ref>–adalah dua jenis fitur permukaan yang terkait dengan fenomena geiser di Mars.
 
Geiser Mars tidak seperti [[geiser]] di Bumi, yang biasanya terkait dengan aktivitas [[hidrotermal]]. Reflektansi ([[albedo]]), bentuk, dan penampakan mirip laba-laba yang tidak biasa dari fitur-fitur ini telah memunculkan berbagai hipotesis tentang asal-usulnya, mulai dari perbedaan reflektansi pembekuan, hingga penjelasan yang melibatkan proses biologis. Namun, semua model geofisika saat ini mengasumsikan adanya semacam semburan atau aktivitas seperti geiser di Mars.<ref name=Kieffer2000 >{{Cite journal | first=H. H. | last=Kieffer | title=Mars Polar Science 2000 - Annual Punctuated CO<sub>2</sub> Slab-ice and Jets on Mars. | date=2000 | url=http://www.lpi.usra.edu/meetings/polar2000/pdf/4095.pdf | access-date=6 September 2009 | archive-date=2011-11-23 | archive-url=https://web.archive.org/web/20111123141147/http://www.lpi.usra.edu/meetings/polar2000/pdf/4095.pdf | dead-url=no }}</ref><ref name=Kieffer2003 >{{Cite journal | first=Hugh H. | last=Kieffer | title=Third Mars Polar Science Conference (2003)- Behavior of Solid CO | date=2003 | url=http://www.lpi.usra.edu/meetings/polar2003/pdf/8083.pdf | access-date=6 September 2009 | archive-date=2021-02-25 | archive-url=https://web.archive.org/web/20210225044607/https://www.lpi.usra.edu/meetings/polar2003/pdf/8083.pdf | dead-url=no }}</ref><ref name=Portyankina >{{Cite journal|title=Fourth Mars Polar Science Conference - Simulations of Geyser-Type Eruptions in Cryptic Region of Martian South| editor-first=G. |editor-last=Portyankina| date=2006| url=http://www.lpi.usra.edu/meetings/polar2006/pdf/8040.pdf| access-date=11 August 2009 |archive-date=2012-02-17|archive-url=https://web.archive.org/web/20120217023905/http://www.lpi.usra.edu/meetings/polar2006/pdf/8040.pdf|dead-url=no}}</ref><ref name=clathrate >{{Cite journal | title=Lunar and Planetary Science XXXV (2004) - Stratigraphy of Special Layers – Transient Ones on Permeable Ones: Examples| editor=Sz. Bérczi| display-editors=etal| date=2004| url=http://www.lpi.usra.edu/meetings/lpsc2004/pdf/1317.pdf| access-date=12 August 2009| archive-date=2017-07-06| archive-url=https://web.archive.org/web/20170706155202/http://www.lpi.usra.edu/meetings/lpsc2004/pdf/1317.pdf| dead-url=no}}</ref><ref name=2006-100 >{{cite news | title=NASA Findings Suggest Jets Bursting From Martian Ice Cap | date=16 August 2006 | publisher=NASA | url =http://www.jpl.nasa.gov/news/news.cfm?release=2006-100 | work=Jet Propulsion Laboratory | access-date =11 August 2009 | archive-date=2009-10-10 | archive-url=https://web.archive.org/web/20091010164741/http://www.jpl.nasa.gov/news/news.cfm?release=2006-100 | dead-url=yes }}</ref><ref>{{cite journal | doi = 10.1016/j.icarus.2009.07.021 | title = HiRISE observations of gas sublimation-driven activity in Mars' southern polar regions: I. Erosion of the surface | journal = Icarus | date = 2010 | authors = C.J. Hansen, N. Thomas, G. Portyankina, A. McEwen, T. Becker, S. Byrne, K. Herkenhoff, H. Kieffer, M. Mellon | volume = 205 | issue = 1 | pages = 283–295 | url = http://www.lpl.arizona.edu/~shane/publications/hansen_etal_icarus_2010.pdf | bibcode = 2010Icar..205..283H | access-date = 2021-11-18 | archive-date = 2016-03-03 | archive-url = https://web.archive.org/web/20160303191824/http://www.lpl.arizona.edu/~shane/publications/hansen_etal_icarus_2010.pdf | dead-url = no }}</ref> Karakteristik geiser Mars, dan bagaimana proses pembentukannya, masih menjadi bahan perdebatan hingga kini.
 
==Referensi==
Baris 10:
==Pranala luar==
{{Commons category|Dark Dune Spots}}
* [http://www.martianspiders.com Martian "Spiders"] {{Webarchive|url=https://web.archive.org/web/20200818113414/http://www.martianspiders.com/ |date=2020-08-18 }} photo repository.
* Arthur C. Clarke on "Martian Spider" features: [http://www.martianspiders.com/Arthur%20C_%20Clarke%20Stands%20By%20His%20Belief%20in%20Life%20on%20Mars.htm 1] {{Webarchive|url=https://web.archive.org/web/20170706171927/http://www.martianspiders.com/Arthur%20C_%20Clarke%20Stands%20By%20His%20Belief%20in%20Life%20on%20Mars.htm |date=2017-07-06 }}
 
 
[[Kategori:Astrobiologi]]
Baris 19 ⟶ 18:
[[Kategori:Geologi Mars]]
[[Kategori:Fitur permukaan Mars]]
 
 
{{Astronomi-stub}}