Desert rock carved by drifting sand (aeolian abrasion) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Sand-blast type of wind abrasion at the foot of a sand dune near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Wind carved flint rocks (aeolian abrasion) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Flat rocks wind-carved by drifting sand near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Flint rocks carved by drifting sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Aeolian abrasion of limestone rocks (carved by drifting sand) south from Abu Nahlah. Qatar, April 25, 2014
Violet flint rocks carved by drifting sand (sandblasted) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Aeolian abrasion of limestone rocks (carved by drifting sand) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Placing pitfall traps in sand at the foot of a barchan dune near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Effects of wind abrasion on limestone rocks near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Tracks of toad-headed agama lizard at the foot of a sand dune near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Placing a pitfall trap (trapping pit) at the foot of sand dune in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Brownish plant Cornulaca aucheri(?) (local name thalj) at the foot of a sand dune near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Fine-grained eolian sand on a crest of a sand dune in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Rounded and well sorted eolian sand on a crest of a sand dune in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Eroded flint stones by drifting sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert rock carved by drifting sand (aeolian abrasion) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
Desert rock carved by drifting sand (aeolian abrasion) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Accumulation of drifting sand around bushy desert plants Cornulaca aucheri(?) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
View from a crest of an arc-shaped sand dune (barchan) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Effects of wind abrasion on desert rocks in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Sand blasted flint rocks in planes in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Fine-grained eolian sand moving on a layer of course grained sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Eolian sand from area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert plant Zygophyllum qatarense in sand near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Grits of eolian sand from area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Sand tracks of a big desert lizard in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Rounded and fine-grained eolian sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Mixture of course and fine grained eolian sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Remains of Arabic newspaper in desert sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Wind driven sand grains of two different sizes in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Close up of rounded and fine-grained eolian sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Poop of a desert lizard with remains of plants in sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Flint stone with a wind carved hole on desert plain in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) standing on sand at hot afternoon in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) standing on extended legs on sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Eastern sandfish (skink, Chalcides mitranus, Scincus mitranus) in sand near dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) standing on extended legs to limit contact with hot sand in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) with fringes of long scales around the eyes to keep out sand grains in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) standing on rocks at hot afternoon in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert plant Zygophyllum qatarense near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Close up of desert plant Zygophyllum qatarense near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Bedouin camping place with rusty cans near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Flower buds of desert plant Zygophyllum qatarense near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Fossilized sea urchin on desert plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Taking nature picture of a desert plant in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Fossil sea urchins (echinoids, echinoderms) taken from desert in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 22, 2013
Two fossil sea urchins (echinoids, echinoderms) taken from desert in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 22, 2013
Remains of a bedouin campfire with a rusty tin can on desert plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Fossil sea urchin (echinoid, echinoderm) among flint stones on desert plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Weather station with Nexgen anemometer and wind vane on desert plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) on rocky plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert plant with yellow flowers Pulicaria undulata (Kootkaat, Rabool, Rabl, Rabd, Ghobbeira, Ghobbayra-a, Shaay gabali) near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) with raised tail used for visual signals in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Eastern sandfish (skink, Chalcides mitranus, Scincus mitranus) on rock near dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert lizard Eastern sandfish (skink, Chalcides mitranus, Scincus mitranus) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Close up of a desert lizard Eastern sandfish (skink, Chalcides mitranus, Scincus mitranus) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Frightened desert lizard Arabian toad headed agama (Phrynocephalus arabicus) changing coloration of its scales to grey and yellow in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Desert plant of aster family with yellow flowers Pulicaria undulata (Kootkaat, Rabool, Rabl, Rabd, Ghobbeira, Ghobbayra-a, Shaay gabali) in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Sand button (creeping thorn rose, Neurada procumbens, local name saadan) in Harrarah, 40 miles south-west from Doha. Qatar, March 2, 2012
Blue head lizard Yellow-spotted Agama (Trapelus flavimaculatus) on sand. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
Sedge (Cyperus conglomeratus)(?) growind at the foot of a sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Qatar Natural History Group outing on limestone hills of Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
Al Udeid Air Base (Abu Nahlah Airport) near Mesayeed, south-west from Doha, view from a window of a car. Qatar, March 19, 2013
Geologist Jacques LeBlanc at the foot of ancient lithified dune of red sand guiding a fossil tour for Qatar Natural History Group (QNHG) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
Limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
Weathered limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
Broken limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
Erosion of limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
Rough weathered limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
Rough eroded limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
Sand-blast type of wind abrasion in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
A camel in desert near Mesayeed, south-west from Doha, view from a window of a car. Qatar, March 2, 2012
Sand-blast type of wind abrasion south from Abu Nahlah. Qatar, April 25, 2014
Sand-blast type of wind abrasion in dunes area south from Abu Nahlah. Qatar, June 23, 2015
View from a crest of sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Aerodynamically eroded limestone rocks (wind abrasion) on a tabletop mountain in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Ambassadors Street in West Bay during sand storm, view from a balcony of Room 2303 of ASAS Tower West. Doha, Qatar, March 26, 2011
Sand dune mushrooms (Laccaria trullisata) on a small pile of sand behind information board at a trailhead on Richards Loop Trail in Sam Houston National Forest. Texas, March 21, 2021
Amwal and QFBA towers in West Bay during sand storm, view from a balcony of Room 2303 of ASAS Tower West. Doha, Qatar, March 26, 2011
Sand patterns at the foot of limestone hill of Jebel Fuwairit at sunrise. North-eastern Qatar, November 14, 2015
Lithified (compacted and hardened, turned to stone) sand dune in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
Underside of sand dune mushrooms (Laccaria trullisata) on a small pile of sand behind information board at a trailhead on Richards Loop Trail in Sam Houston National Forest. Texas, March 21, 2021
Dry plants of Agriophyllum minus on sand at the foot of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Sand texture after a rain at the foot of limestone hill of Jebel Fuwairit at sunrise. North-eastern Qatar, November 14, 2015
Orange lithified (compacted and hardened, turned to stone) sand dune in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
Cross section of sand dune mushrooms (Laccaria trullisata) on a small pile of sand behind information board at a trailhead on Richards Loop Trail in Sam Houston National Forest. Texas, March 21, 2021
Cornulaca aucheri (local name thalj) near a sand dune south from Abu Nahlah. Qatar, April 25, 2014
Plant of Agriophyllum minus on sand at the foot of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Looking over an edge of a small wadi in Harrarah, 40 miles south-west from Doha. Qatar, March 2, 2012
Bone set of a camel in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
Taking pictures of desert in Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
Some grass, probably sedge (Cyperus conglomeratus)(?), growing on a crest of sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Sand and rocks in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
Details of Cornulaca aucheri (local name thalj) near a sand dune south from Abu Nahlah. Qatar, April 25, 2014
Plants of Agriophyllum minus on windblown sand at the foot of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Tribulus macropterus var. arabicus on windblown sand at the foot of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Windblown sand with rocks in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
Qatar Natural History Group in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
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