跳至內容

File:Sahara oog.jpg

頁面內容不支援其他語言。
這個檔案來自維基共享資源
維基百科,自由的百科全書

Sahara_oog.jpg (538 × 298 像素,檔案大小:36 KB,MIME 類型:image/jpeg


摘要

描述
Nederlands: Oog in Mauritania
English: This prominent circular feature in the Sahara Desert of Mauritania has attracted attention since the earliest space missions because it forms a conspicuous bull’s-eye in the otherwise rather featureless expanse of the Gres de Chinguetti Plateau in central Mauritania, northwest Africa. Described by some as looking like an outsized ammonite in the desert, the structure [which has a diameter of almost 50 kilometers (30 miles)] has become a landmark for space shuttle crews. Initially interpreted as a meteorite impact structure because of its high degree of circularity, it is now thought to be merely a symmetrical uplift (circular anticline) that has been laid bare by erosion. Paleozoic quartzites form the resistant beds outlining the structure. The reason for the high degree of circularity is not clear. This true-color scene was acquired by the Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard NASA’s Terra satellite, on March 11, 2002.
日期 攝於2002年3月11日
來源 https://earthobservatory.nasa.gov/images/9262/147bull146s-eye148-151-the-richat-structure-mauritania (image link)
作者 NASA/GSFC/MODIS Land Rapid Response Team and Jacques Descloitres

授權條款

Public domain 本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zhNASA版權政策JPL圖像使用政策
警告:

原始上傳日誌

The original description page was here. All following user names refer to nl.wikipedia.

Transferred from nl.wikipedia to Commons by Koektrommel using CommonsHelper.

  • 2003-10-30 14:16 Kristof vt 540×300× (24874 bytes) oog in mauretanie van 11 maart 2002 van http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=2124

說明

添加單行說明來描述出檔案所代表的內容

在此檔案描寫的項目

描繪內容

image/jpeg

檔案歷史

點選日期/時間以檢視該時間的檔案版本。

日期/時間縮⁠圖尺寸使用者備⁠註
目前2015年3月31日 (二) 11:28於 2015年3月31日 (二) 11:28 版本的縮圖538 × 298(36 KB)Ras67cropped
2009年8月17日 (一) 14:08於 2009年8月17日 (一) 14:08 版本的縮圖540 × 300(24 KB)File Upload Bot (Magnus Manske) {{BotMoveToCommons|nl.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{nl|oog in mauretanie van 11 maart 2002 van http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards

下列頁面有用到此檔案:

全域檔案使用狀況

以下其他 wiki 使用了這個檔案:

詮釋資料