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Topic: Harrat Rahat


  
  Harrat Hutaymah, Saudi Arabia (Page 1 of 2)
Volcanic vents of the Harrat Hutaymah volcanic province.
"Harrat" is the possessive form of the Arabic word "harrat", which means "stony area volcanic country or lava field." Numerous harrats are aligned along the west margin of the Saudi Arabian Plate subparallel to the Red Sea.
Xenoliths from the mantle are unusually common at Harrat Hutaymah.
volcano.und.nodak.edu /vwdocs/volc_images/europe_west_asia/saudi_arabia/harrat.html   (728 words)

  
 Saudi Geological Survey
Holocene volcanic eruptions are associated with the volcanic plateaus of Harrat Khaybar, Harrat Rahat, and Harrat Kishb in west-central Saudi Arabia.
The potential for future eruptions in Harrats Khaybar, Rahat and Kishb is significant and the associated risk is highest near the holy city of Al Madinah.
A volcanic eruption was recorded at the northern end of Harrat Rahat near Al Madinah, Saudi Arabia in 1256 A.D. About one half cubic-kilometer of alkali olivine basalt was extruded from six vents along a 2.25 km-long fissure at the north end of the Harrat Rahat lava field.
www.sgs.org.sa /index.cfm?sec=79&sub=285&page=   (324 words)

  
 LAVA FIELDS OF SAUDI ARABIA
Between Makkah and Madinah is the 20,000km2 Harrat Rahat lava-field with 644 scoria cones, 36 shield volcanoes and 24 domes.
ROOBOL: Harrat Kishb is one of the smaller lava fields in Saudi Arabia.
Harrat Kishb is very well known in Arabia because of its abundance of peridiotite nodules carried in the dominant rock type, which is basanite, a very primitive basalt.
www.saudicaves.com /lava/introobl.htm   (2120 words)

  
 Amazon.com: RAHAT   (Site not responding. Last check: 2007-10-30)
Spectral analysis of the 1976 aeromagnetic survey of Harrat Rahat, Kingdom of Saudi Arabia (Open-file report / United States Department of the Interior, Geological Survey) (Open-file report / United States Department of the Interior, Geological Survey) by H. Richard Blank (Unknown Binding - Jan 1, 1983)
Rahat vai henki by Saara Finni (Unknown Binding - 1976)
Rahat tai renki by Aarno Laitinen (Unknown Binding - 1984)
www.amazon.com /s?ie=UTF8&search-alias=aps&keywords=RAHAT&page=1   (302 words)

  
 Medina - Wikipedia, the free encyclopedia
After the death of Ali Karam Allahu wajha hul kareem, the fourth caliph, Mu'awiyya transferred the capital to Damascus and the importance of Medina dwindled and became more of a religious site than a political site.
In 1256 Medina was threatened by lava flow from the last eruption of Harrat Rahat.
In 1924 Medina, which had been in Ottoman hands for centuries, fell to Ibn Saud, who later became the first King of Saudi Arabia.
en.wikipedia.org /wiki/Madina   (935 words)

  
 Deputy Ministry for Mineral Resources Saudi Arabia   (Site not responding. Last check: 2007-10-30)
Their distribution is related to the intense brittle tectonics (fracturing/faulting) associated with the opening of the Red Sea, which began at the end of the Oligocene or beginning of the Miocene (about 25 Ma), when the Arabian and African continental blocks were forced apart.
The harrats of Saudi Arabia, located between 50 and 500 km east of the Red Sea coast (except for the Al Birk volcanic field on the Red Sea coastal plain), show common volcanologic, petrographic, and structural features.
The last eruption was from Harrat Rahat in A.D. 1256, when the lava flow stopped short of the gates of Al Madinah.
www.dmmr.gov.sa /geology-ksa.php   (1666 words)

  
 Saudi Aramco World : Volcanic Arabia   (Site not responding. Last check: 2007-10-30)
Moufti explains that Harrat Rahat is twice the area of Lebanon.
By counting the number of vents and eruptions that have occurred on northern Harrat Rahat, volcanologists estimate that, during the past 4500 years, there have been 13 major eruptions—one every 346 years, on average.
The result was a series of detailed (1:250,000) geological maps and explanatory notes, as well as papers in the international scientific literature covering three of the largest Cenozoic lava fields: Harrat Rahat, Harrat Kashib and the coalesced harraat of Khaybar, Ithnayn and Kura.
www.saudiaramcoworld.com /issue/200602/volcanic.arabia.htm   (4373 words)

  
 Global Volcanism Program | Harrat Rahat | Summary   (Site not responding. Last check: 2007-10-30)
Saudi Arabia's largest lava field, 20,000 sq km Harrat Rahat extends for 300 km south of the holy city of Al Madinah (Medina).
Four coalescing lava fields erupted from offset NNW-trending vent systems comprise Harrat Rahat, which has an average width of 60 km.
Lava flows extend as far as 100 km west of the axis of the field.
www.volcano.si.edu /world/volcano.cfm?vnum=0301-07=   (182 words)

  
 [No title]
Moufti, M.R.H, Nassief, M.O., Hashad, M.H., 1995, The petrology and geochemistry of the intraplate Manwar volcanics, Part of the Harrat Rahat, Saudi Arabia.
Moufti, M.R.H., 1988, Late Cenozoic Volcanism of the Northern part of the Harrat Rahat, Saudi Arabia [Abs] : The Third Jordanian Geologic Conference, (3-5, April, 1988, Amman, Jordan).
Moufti, M. R.; Sabtan, A. A; El-Mahdy, O; and Shehata, W. M (1998) Preliminary geologic and engineering assessment of the pyroclastic deposits in the central part of Harrat Rahat: Presented in the 5th Meeting of the Saudi Society for Earth Sciences, Dahran 26-29 October, Abstract, p.
www.kaau.edu.sa /mmoufti/8.htm   (608 words)

  
 Geomorphology: Chapter 3 Plate V-22
Basalt plateaus (Figure V-22.2) are known as harrats.
Prominent in the Landsat scene is Harrat Rahat (lower right), a convex upland whose relief is produced mainly by volcanic craters and cones.
The prominent Harrat al ´Uwayrid runs north westward near the line of unconformity.
daac.gsfc.nasa.gov /geomorphology/GEO_3/GEO_PLATE_V-22.shtml   (679 words)

  
 MODIS Website
In both images, streaks of green plants line the Wadi al Hamd, which flows by the city from the northwest.
The fl Harrat Rahat (Rahat lava fields) stretch south from Medina to Mecca, which is beyond the southern boundary of the images.
This image was created by Jesse Allen at the Earth Observatory using data obtained from the MODIS Rapid Response team.
modis.gsfc.nasa.gov /gallery/individual.php?db_date=2005-01-27   (205 words)

  
 Saudi Aramco World : Satellites, Sensors and Saudi Arabia: From high in space, a new perspective   (Site not responding. Last check: 2007-10-30)
Aulis Hind, now director of the University of Vermont Remote Sensing Laboratory, and associate professor, won her Ph.D in geography from the University of Wisconsin and for 15 years has worked with NASA, the U.S. Army and the University of Vermont interpreting digitalized satellite photos.
This scene includes the high mountains which stretch south from Makkah to the Yemeni border in the province of Najran and shows portions of the eastern flank of the Harrat and the rocky plateau of Najran.
In the upper right hand third - the light-toned area (1) - are "stripes" of sand known as the Shuqqat Najran.
www.saudiaramcoworld.com /issue/198202/satellites.sensors.and.saudi.arabia-from.high.in.space.a.new.perspective.htm   (3106 words)

  
 Global Volcanism Program | Harrat 'Uwayrid | Summary   (Site not responding. Last check: 2007-10-30)
The Harrat 'Uwayrid, located in NW Saudi Arabia along the Bedouin pilgrim route to Syria, contains young basaltic scoria and tuff cones and associated lava fields.
The massive alkali olivine basaltic lava field reaches a height of 1920 m; it extends about 125 km in a NW-SE direction and is contiguous with the Harrat ar Rahat volcanic field to the NW.
The Catalog of Active Volcanoes of the World (Neumann van Pandang, 1963a) indicated that an eruption in about 640 AD at Harrat 'Uwayrid may have been from either Hala-'l-Bedr or Hala-'l-'Ischia, or both.
www.volcano.si.edu /world/volcano.cfm?vnum=0301-02=   (153 words)

  
 Global Volcanism Program | Volcanoes of the World | Volcanoes of the Middle East and the Indian Ocean | Data Sources   (Site not responding. Last check: 2007-10-30)
Geologic map of the Cenozoic lava field of Harrat Rahat, Kingdom of Saudi Arabia.
Evolution of Harrats Khaybar, Ithnayn, and Kura, Kingdom of Saudi Arabia.
Geologic map of the Cenozoic lava fields of Harrats Khaubar, Ithnayn, and Kura, Kingdom of Saudi Arabia.
www.volcano.si.edu /world/region.cfm?rnum=03&rpage=sources   (1877 words)

  
 For Sale : USGS / Saudi GM Series Maps : Geological maps.
Saudi Map GM-123 Geologic map of the Cenozoic lava field of Harrat Rahat, Kingdom of Saudi Arabia.
Saudi Map GM-131 Geologic map of the Cenozoic lava fields of Harrats Khaybar, Ithnayn, and Kura, Kingdom of Saudi Arabia.
Saudi Map GM-132 Geologic map of the Cenozoic Lava field of Harrat Kishb, Kingdom of Saudi Arabia.
www.woodenski.com /2neat/usgs/mapssaudi.html   (2935 words)

  
 Medina info here at en.20-of-100.info   (Site not responding. Last check: 2007-10-30)
After the repose of Ali Karam Allahu wajha hul kareem, the fourth caliph, Mu'awiyya transferred the capital to Damascus und the accent of Medina dwindled und became more of a religious environment than a political site.
In 1256 Medina was threatened by lava drift from the determinative eruption of Harrat Rahat.
In 1924 Medina, which had vintage in Ottoman hooks for centuries, fell to Ibn Saud, who subsequential became the greatest King of Saudi Arabia.
en.20-of-100.info /Medina   (1249 words)

  
 Medina info here at en.90of100e.info   (Site not responding. Last check: 2007-10-30)
After the extermination of Ali Karam Allahu wajha hul kareem, the fourth caliph, Mu'awiyya transferred the capital to Damascus und the preponderancy of Medina dwindled und became more of a religious habitat than a political site.
In 1256 Medina was threatened by lava drencher from the ulterior eruption of Harrat Rahat.
In 1924 Medina, which had old-fashioned in Ottoman shakers for centuries, fell to Ibn Saud, who more late became the prime King of Saudi Arabia.
en.90of100e.info /Medina   (1191 words)

  
 Harrat Hutaymah, Saudi Arabia (Page 2 of 2)   (Site not responding. Last check: 2007-10-30)
Looking northwest to Hutaymah, a tuff cone and namesake of the volcanic province.
Looking northwest to the nested cinder and spatter cones of Harrat ad Dakhana in the north-central part of the Harrat Hutaymah volcanic field.
Cinder cones are made of varying amounts of unconsolidated to poorly consolidated basaltic cinder, bombs, and spatter.
volcano.und.nodak.edu /vwdocs/volc_images/europe_west_asia/saudi_arabia/harrat2.html   (396 words)

  
 Fossils - Bibliography
Hussain, A. G., and Bakor, A. Petrography and palaeomagnetism of the basalts, southwest Harrat Rahat, Saudi Arabia.
Madden, C. Paleocene, Pycnodont fishes from Jabal Umm Himar, Harrat Hadan area, At Taif region, Kingdom of Saudi Arabia.
Madden, C. T., Naqvi, I. M., Whitmore, F. C., Schmidt, J. D., Langston, J., and Wood, R. Paleocene vertebrates from coastal deposits in Harrat Hadan Area, At Taif Region, Kingdom of Saudi Arabia.
www.adias-uae.com /fossils/Biblio.htm   (3633 words)

  
 Basement tectonics of Saudi Arabia as related to oil field structures, by H. Stewart Edgell
This E-W extension, due to the initial updoming of the Arabo-Nubian Shield, stretched the brittle crystalline, Precambrian rocks, causing a series of subparallel N-S horsts and grabens and initiated the 'old grain of Arabia', now widely known as the Arabian Trend.
Repeated, periodic uplifts of the Arabian Shield have continued this faulting and basement uplift until historic times, as shown by the N-S trending Late Tertiary-Quaternary lava fields (Harrat) and cinder cones along fractures in the shield, with eruption as recently as 1250 AD in the Harrat Rahat, south of Al Madinah.
This uparching of the shield probably also led to the formation of less pronounced, E-W fault trends, which can be seen clearly on the running difference gravity map of northern onshore Saudi Arabia (Barnes 1987).
perso.wanadoo.fr /brcgranier/gmeop/Edgell_1992.htm   (7816 words)

  
 Geological Society of America - Data Repository - 1989
File size: 4 p., about 305 K bytes.
The Arabian continental alkali basalt province: Part I. Evolution of Harrat Rahat, Kingdom of Saudi Arabia; senior author: VICTOR E. File size: 17 p., about 1681 K bytes.
Minor- and trace-element distributions in the Bonneterre Dolomite (Cambrian), southeast Missouri: Evidence for possible multiple-basin fluid sources and pathways during lead-zinc mineralization; senior author: JAY M. File size: 10 p., about 1300 K bytes.
www.geosociety.org /pubs/ft1989.htm   (493 words)

  
 Saudi Arabia Locations List - Harrat Kurama' to Hashash Dabas
Saudi Arabia Locations List - Harrat Kurama' to Hashash Dabas
/ Explore / Saudi Arabia / Locations / H / Harrat Kurama' to Hashash Dabas
Locations in Saudi Arabia begining with H - Harrat Kurama' to Hashash Dabas
www.traveljournals.net /explore/saudi_arabia/locations/h/14.html   (101 words)

  
 GSA Bulletin -- Table of Contents (January 1 1989, 101 [ 1])
Ar polyorogenic mineral age record within the central Mauritanide Orogen, West Africa; with Suppl.
The Arabian continental alkali basalt province; Part I, Evolution of Harrat Rahat, Kingdom of Saudi Arabia; with Suppl.
Half-graben structures; balanced models of extensional fault-bend folds
bulletin.geoscienceworld.org /content/vol101/issue1   (277 words)

  
 Global Volcanism Program - Volcanic Activity Reports - Volcano Names, Synonyms, and Subfeatures (R)   (Site not responding. Last check: 2007-10-30)
The Global Volcanism Program Holocene volcano database currently contains 46 primary volcano names (bolded), 53 synonyms, and 269 subfeatures, for a total of 368 names that start with R. Volcano Name
Aleutian Is Synonym of RAHAH, HARRAT AR Arabia-W
RANA, LAGUNA SECA DE LA Crater of APANECA RANGE
www.hrw.com /science/si-science/earth/tectonics/volcano/volcano/gazet_r.html   (170 words)

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