Geochemistry, geochronology, and petrogenesis of a Late Precambrian (∼ 590 Ma) composite dike from the North Eastern Desert of Egypt

1987 ◽  
Vol 76 (2) ◽  
pp. 325-341 ◽  
Author(s):  
Robert J. Stern ◽  
David A. Voegeli
2008 ◽  
Vol 109 (3-4) ◽  
pp. 313-327 ◽  
Author(s):  
J. Fossati ◽  
G. Pautou ◽  
J. P. Peltier

2020 ◽  
pp. 81-84
Author(s):  
Abdullah Saleh Al-Ghamdi

Classifying and mapping of vegetated area in Al- Baha region, Saudi Arabia using remote sensing shows that the medium-high density vegetation is mostly found at the central part of Al-Baha region separating the highlands and the low lands. Results obtained show that only 862.5 km2 (7.7%) Al-Baha region is covered with medium-high density vegetation found mainly at the 6-15km width horizontal central belt (at districts of Al-Mandaq, Al-Baha and south Baljurashi) along high foggy mountainous plateau. Whereas, about 65% of Al-Baha region has very low-none density vegetation mainly occurred extensively at Tihama low plain towards the Red Sea and at the north-eastern desert plain. In addition, study reveals that the highlands of Al-Baha have the most numbers of trees represents the areas of the highest elevations in the region (range between 1940 and 2366 m above sea level. This indicates that there is relationship between this elevation range with medium to high vegetation density. Similarly, the low surface temperatures are mainly located at the central belt across Al-Baha region. When overlaid with medium-high vegetation density zone with the temperature map, it was visually observed that it almost fit with lower temperature zone of less than 15°C. This also indicates that there is relationship between lower temperature with medium-high vegetation density.


2016 ◽  
Vol 32 ◽  
pp. 181-192 ◽  
Author(s):  
Kamal A. Ali ◽  
Basem A. Zoheir ◽  
Robert J. Stern ◽  
Arild Andresen ◽  
Martin J. Whitehouse ◽  
...  

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