Owing to the paucity of data concer

Owing to the paucity of data concerning the sedimentary record of the alluvial fans in Jordan, the present study provides characterization of the gravel-dominated alluvial fans based on lithofacies analysis, bed architecture and palaeocurrent directions measured in three-dimensional exposures. Wadi Araba alluvial fans are an important local source of groundwater in the prevailing arid region. For instance, the villages of Wadi Rahma and Qatar in Wadi Araba obtain their water supply from wells sunk in distal alluvial fans. The alluvial fans also provide a local source of aggregate. Wadi Araba alluvial fans are a valuable record of neotectonic seismic (earthquake) activities along Wadi Araba- Dead Sea Transform (DST) initiated in middle Miocene (Garfunkel et al., 1981), and can be used as indicators of the Dead Sea Transform fault evolution and climatic changes (Atallah and Al-Taj, 2004).
Wadi Araba (Fig. 1) is oriented NNE-SSW, and in the study area is 10-17 km wide in an E-W direction. The elevation of Wadi Araba in the study area, about 45 km north of Aqaba, ranges from zero m above sea level (ASL) in its southern part to about 75 m ASL in its northern part. The southern Wadi Araba is a hot, arid region. Average air temperature range is 17.70C-30.80C (Jordan Climatological Handbook, 2000). The daily maximum temperature can reach 48◦C during the summer. Annual rainfall averages 30.4 mm. The eastern mountain range receives up to 200 mm/year rain fall; flood water flows westwards via numerous wadis to Taba Sabkha. The western mountains receive only about 50 mm/year. Annual mean wind speed at the Aqaba airport, south of the study area, is 8.6 knots and 70% of the prevailing winds are northerly and 8% are southerly (Jordan Climatological Handbook, 2000).

Hasil (Bahasa Indonesia) 2:

Karena kurangnya data mengenai catatan sedimen dari para penggemar aluvial di Yordania, penelitian ini memberikan karakterisasi fans aluvial kerikil-didominasi berdasarkan analisis lithofacies, arsitektur tidur dan arah palaeocurrent diukur dalam eksposur tiga dimensi. Wadi Araba penggemar alluvial merupakan sumber lokal yang penting dari air tanah di wilayah gersang yang berlaku. Misalnya, desa Wadi Rahma dan Qatar di Wadi Araba mendapatkan pasokan air dari sumur tenggelam dalam kipas aluvial distal. Para penggemar aluvial juga menyediakan sumber lokal agregat. Wadi Araba penggemar aluvial adalah catatan berharga neotektonik seismik (gempa) kegiatan bersama Wadi Araba- Dead Sea Transform (DST) dimulai pada tengah Miosen (Garfunkel et al., 1981), dan dapat digunakan sebagai indikator dari Laut Mati Transform kesalahan evolusi dan iklim perubahan (Atallah dan Al-Taj, 2004).
Wadi Araba (Gbr. 1) berorientasi timurlaut-SSW, dan di daerah penelitian adalah 10-17 km lebar ke arah EW. Ketinggian Wadi Araba di daerah penelitian, sekitar 45 km sebelah utara dari Aqaba, berkisar dari nol m di atas permukaan laut (ASL) di bagian selatan sekitar 75 m ASL di bagian utaranya. The selatan Wadi Araba adalah panas, daerah kering. Rata-rata suhu udara 17.70C-30.80C (Jordan Klimatologi Handbook, 2000). Suhu maksimum harian bisa mencapai 48◦C selama musim panas. Rata-rata curah hujan tahunan 30,4 mm. Pegunungan timur menerima hingga 200 mm / tahun curah hujan; air banjir mengalir ke arah barat melalui berbagai wadi ke Taba Sabkha. Pegunungan barat hanya menerima sekitar 50 mm / tahun. Rata-rata tahunan kecepatan angin di bandara Aqaba, selatan daerah penelitian, adalah 8,6 knot dan 70% dari angin yang berlaku secara utara dan 8% adalah selatan (Jordan Klimatologi Handbook, 2000).