File:Es Safa Volcanic Field, Syria.JPG

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English: Es Safa Volcanic Field — Es Safa is a striking basaltic volcanic field located to the south-east of Damascus, western Syria.
  • Es Safa contains numerous vents that have been active during the Holocene Epoch (beginning approximately 12,000 years ago). The most recent recorded activity was a boiling lava lake observed in the area around 1850.
  • The dark lava flow field (centre) likely represents the latest activity of the volcanic field, and is emplaced over older, lighter coloured flows. The older flow surfaces also have light tan sediment accumulating in shallow depressions, in contrast to the relatively pristine surfaces of the darker, younger flows.
  • Cinder cones are scattered throughout the Es Safa field, but many are aligned along north-west south-east trends that likely indicate faults through which magma rose to the surface. Two such alignments are visible at image left.
  • To the south-east (image right) a small reservoir feeds water distribution ditches extending northwards.
العربية: تلول الصفا البركانية - تقع جنوب شرق مدينة دمشق، غرب سوريا.
  • جبال الصفا تحوي عدة فتحات كانت نشطة خلال العصر الهولوسيني الذي بدأ قبل حوالي 12000 سنة.
  • مثل مجال تدفق الحمم الداكنة (الوسط) على الأرجح آخر نشاط للمجال البركاني، ويتموضع فوق التدفقات القديمة ذات الألوان الأخف. كما أن الأسطح المسطحات القديمة ذات التدفق القديم تحتوي على رواسب بلون أسمر فاتح تتراكم في ظروف الضغط الضعيفة، وذلك على عكس الأسطح الأصلية نسبيًا للتدفقات الأدكن والأقل عمراً.
  • تنتشر مخاريط الرماد في جميع أنحاء حقل الصفاء، لكن العديد منها محاذية على طول الاتجاهات الشمالية الغربية الجنوبية الشرقية التي تشير على الأرجح إلى وجود عيوب ترتفع خلالها الصهارة إلى السطح. يمكن رؤية اثنين من هذه المحاذاة على يسار الصورة.
  • إلى الجنوب الشرقي (الصورة إلى اليمين) منبع صغير يغذي المياه توزيع خنادق تمتد إلى الشمال.
Date
Source NASA Earth Observatory
Author ISS Expedition 24 crew
Camera location33° 00′ 00″ N, 37° 12′ 00″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS024-E-13690.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
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Image acquired with a Nikon D2Xs digital camera using a 180 mm lens, and is provided by the ISS Crew Earth Observations experiment and the Image Science & Analysis Laboratory, Johnson Space Center.

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current08:59, 20 September 2010Thumbnail for version as of 08:59, 20 September 20104,288 × 2,850 (4.41 MB)Originalwana (talk | contribs){{Information |Description={{en|1=Es Safa is a striking basaltic volcanic field located to the south-east of Damascus, Syria. Es Safa contains numerous vents that have been active during the Holocene Epoch (beginning appro

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