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Home Features

Fezzan Sand Seas: A popular but unprotected area for off-road driving and adventure tourism

byMichel Cousins
November 24, 2013
Reading Time: 6 mins read
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Fezzan Sand Seas: A popular but unprotected area for off-road driving and adventure tourism
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By Mustafa J. Salem and Hans-Joachim Pachur

Figure 1, MSalem
Figure 1: Part of a satellite image of Murzuk Sand Sea with its complex dune fields. Low, grey areas represent inter-dune, old lake deposits that are common between the high dunes.
Figure 2: . . .[restrict]A close-up of one of the numerous dry lakes within the Murzuk Sand Sea. Thanks to Google Earth for the extraordinary three-dimensional details of the various sand dunes. Note the old lake deposits which give good rock exposure at the lowerside of the lake.
Figure 2: A close-up of one of the numerous dry lakes within the Murzuk Sand Sea. Thanks to Google Earth for the extraordinary three-dimensional details of the various sand dunes. Note the old lake deposits which give good rock exposure at the lowerside of the lake.
Figure 3: Satellite image of the Fezzan region, showing the two major sand seas – Idhan Murzuk and Idhan Obari. Most of the areas where these huge sand seas extend today were at some time in geological history part of the Fezzan Mega-Lake. At a later time these sand fields were formed with hundreds of smaller lakes scattered in the inter-dune depressions. They attracted much wildlife including mega fauna (refer to Libya Herald article, 9 May, 2013: "The Fezzan Region : an interesting history and prospect for a  brighter future.” By Mustafa J. Salem et al.)
Figure 3: Satellite image of the Fezzan region, showing the two major sand seas – Idhan Murzuk and Idhan Obari. Most of the areas where these huge sand seas extend today were at some time in geological history part of the Fezzan Mega-Lake. At a later time these sand fields were formed with hundreds of smaller lakes scattered in the inter-dune depressions. They attracted much wildlife including mega fauna (refer to Libya Herald article, 9 May, 2013: “The Fezzan Region : an interesting history and prospect for a brighter future.” By Mustafa J. Salem et al.)

When we look at the landscape of the Fezzan region using satellite images or Google Earth, the most striking and dominant type of terrain is the dunes. The area has the most interesting and remarkable dune fields in Libya and probably in North Africa. The two main Sand seas are Idhan Murzuk (Murzuk Sand Sea) and Idhan Obari (Obari Sand Sea).

These two vast sand seas are located in two huge depressions that are surrounded on all sides, except the east, by mountainous terrain of various rock types. From the east there are prominent depressionswhich cannot be missed representing old rivers running toward the east-northeast, toward the Al Haruj Volcanic Field. These old rivers are what are now called Wadi ash Shati, Wadi al Ajaland WadiBarjuj (Figure 3).

The two sand seas cover an area exceeding 125 000 km2. They are separated by the crescent-shaped MessakPlateau which is formed of resistive Mesozoic sandstone beds, which dip away from IdhanAwbari towards Idhan Murzuk (Figure 3).  The dunes are mostly longitudinal and barachanoid with tranverse dunes and common star dunes some of which are almost 200 metres high.

Such dune structures form a very complicated landscape which is exceedingly difficult to cross. Corridors between the longitudinal dunes can extend for tens of kilometres unless they are cut by transverse dunes running at right angles to the longitudinal dunes. Between the dunes in these corridors lie hundreds of dry palaeolakes each of which extends for a few kilometers in all directions  (Figures 1,2, 4, 5 and 10).

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Figure 4: An aerial view of the complex dunes in Idhan Obari. Note the star dunes with several different prevailing wind directions and more than one slip face. Barachanoid and transverse dunes dominate the terrain. (Photo courtesy of Franco-Libyan Palaeontological Project.)
Figure 4: An aerial view of the complex dunes in Idhan Obari. Note the star dunes with several different prevailing wind directions and more than one slip face. Barachanoid and transverse dunes dominate the terrain. (Photo courtesy of Franco-Libyan Palaeontological Project)
Figure 5: A close-up of a star dune complex, with several slip faces indicating more than one wind direction. Notice at the bottom of the complex (see the camp) there is a small inter-dune lake deposit.This camp was used as a base-camp to supply the camel trip that was organised for a number of scientific surveys of the palaeo-lakes that lie deep within the dunes.(Photo courtesy of Franco-Libyan Palaeontological Project.)
Figure 5: A close-up of a star dune complex, with several slip faces indicating more than one wind direction. Notice at the bottom of the complex (see the camp) there is a small inter-dune lake deposit.This camp was used as a base-camp to supply the camel trip that was organised for a number of scientific surveys of the palaeo-lakes that lie deep within the dunes.(Photo courtesy of Franco-Libyan Palaeontological Project)

Historical Background

Dunes have existed at Idhan Murzuk and Idhan Owbari since at least the Pleistocene epoch. Acheulian and Aterian artefacts exist within the corridors of these dunes around the edges of the old lakes. These lakes were interspersed at a distance of approximately six kilometers, with a dimension of up to 3 x 12 kilometres and a water depth of upto 20 metres. It is thought that the water quality ranged from fresh to brackish.

Dating of organic material, pottery and bones of vertebrates from these lakes indicate that the humid phase in the Idhan Murzuk area lasted from more than 8,100 years ago to about 5,300 years ago (H.-J.Pachur, 2012).

Based on the types of mammals in the area at the time, it can be postulated that during that time the dunes had a grassland and open woodland vegetation. This is associated with fresh-brackish water lakes and salty earth, with swamps and flooded grassland suitable for hippopotamus, buffalo, waterbuck, korrigum and domestic cattle (Figure 6).

Bones of some species embedded in dated lake sediments have been reported (H.-J. Pachur, 2012). Similar fauna were painted and engraved in the nearby mountainous areas of Messak and Akakus (Figure 3). The frequent occurrence of tethering stones used during hunting indicates that the area was well suited to cattle rearing and hunting. It is believed that the Idhan Murzuk area had a much higher rainfall at that time, possibly as high as 400 millimetres per annum (H.-J.Pachur,2012).

Figure 6: Idhan Murzuk with several wild animals as evidenced from fossil bones unearthed from the various inter-dune lakes. The neighbouring areas of Messak and Akakus depict thousands of engravings and rock art paintings indicating similar fauna. Among the faunas listed are: Fish; Amphibians; Reptiles -crocodiles; Birds - water fowl, yellow billed stork, sea eagles; Mammals- jackal, wild cat, lion, leopard, mongoose, elephant, wild ass, rhinoceros, warthog, hippopotamus, bovid, antelope, gazelle, wild cattle, buffalo, barbary sheep, rabbits. (After H.-J. Pachur: “Palaeohydrology of the East Sahara” in The Geology of Southern Libya, 2012, vol.I,pp.293-314.)
Figure 6: Idhan Murzuk with several wild animals as evidenced from fossil bones unearthed from the various inter-dune lakes. The neighbouring areas of Messak and Akakus depict thousands of engravings and rock art paintings indicating similar fauna. Among the faunas listed are: Fish; Amphibians; Reptiles -crocodiles; Birds – water fowl, yellow billed stork, sea eagles; Mammals- jackal, wild cat, lion, leopard, mongoose, elephant, wild ass, rhinoceros, warthog, hippopotamus, bovid, antelope, gazelle, wild cattle, buffalo, barbary sheep, rabbits. (After H.-J. Pachur: “Palaeohydrology of the East Sahara” in The Geology of Southern Libya, 2012, vol.I,pp.293-314.)

Idhan Murzuk and Idhan Obari as tourist attractions

Just over two decades ago, crossing either Idhan Obari or Idhan Murzuk was a risky undertaking for any tourist. At the time only the local people (mostly Tuareg) knew the passages and therefore how to reach the areas deep within these huge sand fields.

However, with the advent of GPS technology and satellite phones and then high resolution satellite images, it became quite feasible to navigate through these dunes without the risk of being lost in the desert.

The arrival of the oil companies in these areas with their huge facilities made the adventure even easier. Most of the Tuareg who knew the area very well have become guides to assist in crossing these dunes. The Murzuk Sand Sea has since been crossed many times with tracks and pictures of tourists all over the area.

The introduction of lighter vehicles, especially motorcycles and quad bikes, has made the area even more accessible to tourists, especially to those who enjoy off-road driving and motorcycling with complete and unlimited freedom.

In the last two decades a few international rallies have also been organised which have helped popularise these areas for adventure off-road driving (Figures 7 and 8). The dune areas are attractive not only to adventure drivers but also to people interested in archaeology as these areas, up until two decades ago, were very rich in prehistoric archaeological remains dating back thousands of years.

Figure 7: Motorbikes at Idhan Murzuk. These adventurers on motorbikes or quads have a considerable impact on the landscape and its archaeological content, with very little return to the tourism industry in Libya. They are also involved in frequent tragic accidents in the remote desert due to their reckless driving in the rugged terrain. (Photo courtesy of MPFL Project)
Figure 7: Motorbikes at Idhan Murzuk. These adventurers on motorbikes or quads have a considerable impact on the landscape and its archaeological content, with very little return to the tourism industry in Libya. They are also involved in frequent tragic accidents in the remote desert due to their reckless driving in the rugged terrain. (Photo courtesy of MPFL Project)

Impacts of Tourism

Uncontrolled off-road driving through the dunes by tourists has a huge impact on the surface especially in the corridors where all the palaeo-lakes are situated. The surface of these areas is very fragile and contains the remains of historic fossils as well as archaeological remains which are subject to displacement, theft and destruction by unregulated driving. The use of motorbikes, quads and a large number of vehicles such as those in the rallies has a tremendously deleterious impact on the surface, archaeology and habitats of the area.These impacts will be obvious scars for many decades. Compare the tyre tracks from WWII that are still visible on areas of desert pavement and will be for many years to come.

Impact of Oil Exploration

Oil companies are required by law to conduct Environmental Baseline and Impact Assessments prior to any exploration or exploitation of hydrocarbons anywhere in Libya. All operating companies have their own HSE standards and requirements which in theory coincide with the environmental requirements of the country.

However, as a result of the oil activities in the desert, we still see lots of negative impacts on the environment, especially on the surface landscape. Among these impacts we can list:

  • Random driving and the impact on the surface topography;
  • Disturbance to the archaeological remains including some dislocation, accidental destruction and the removal of artefacts as souvenirs;
  • Use of heavy machines such as bulldozers and rollers to open tracks and access lines for seismic activities. These tracks provide new access to remote areas whichhad been off-limits to any vehicles prior to their opening;
  • Civil work associated with the oil industry such as pipelines, gas-oil separation installations, power plants, offices, residential areas, airports, etc.;
  • Disturbance to the rare fauna due to the large number of people, the noise, the movement of vehicles and sometimes opportunistic hunting;
  • Solid and liquid rubbish littered around the base camps and oil installation bases;
  • Pollution by associated water sometimes leading to nitrate enrichment of groundwaters, hydrocarbon spills, and fumes;
  • Use of some of the precious water for oil production.

Most of these impacts could be avoided, rectified or at least minimized if the companies operating in the desert are determined and committedto respecting the unique landscape and putting environmental issues and local sustainabilityat the very top of their priority lists (Figure 9).

Figure 8: A fly camp for an international scientific expedition (Franco-Libyan Palaeontological Project) to the palaeolakes of Idhan Murzuk (2006), using camels.  A slow but practical way of exploring the remote areas within the dunes. This mode of transport could be utilised not only for scientific expeditions but also for adventure tourism to the exclusion of motorised vehicles. (Photo courtesy of MPFL Project.)
Figure 8: A fly camp for an international scientific expedition (Franco-Libyan Palaeontological Project) to the palaeolakes of Idhan Murzuk (2006), using camels. A slow but practical way of exploring the remote areas within the dunes. This mode of transport could be utilised not only for scientific expeditions but also for adventure tourism to the exclusion of motorised vehicles. (Photo courtesy of MPFL Project)

Urgent need for control

Idhan Murzuk and Idhan Obari are not the only fragile heritage areas that need urgent attention from the authorities in Libya. Almost all the natural and human heritage areas need protection including the ones that were recognised by UNESCO as World Heritage archaeological sites.

Negative impacts are affecting all the heritage sites in Libya in various ways. Some through deliberate vandalism, others through a lack of adequate legislation and/or weak enforcement while others are due to ineffectual management, negligence on the part of the authorities and lack of public awareness.

Whatever the reasons, the results are always the same – further damage to Libya’s valuable and irreplaceable history. The Idhan Murzuk area has very little grazing land, up until now has been devoid of any residents and, except in the western part, has not been affected by oil exploration activities. This area, with its wealth of prehistoric remains and interesting geological history is yet to be studied by experts.It should be maintained as an area strictly prohibited to any off-road driving adventurer or archaeology enthusiast.

Perhaps a small area on the fringe of the sand sea could be allocated for driving through for such sports while the rest of the area should be restricted and accessible only to authorised researchers or personnel. Officially sanctioned safari trips could be arranged to controlled areas for small groups using camels.

Idhan Murzuk should be designated a national park with all appropriate restrictions. It should have a management system that is regularly revised and updated and well trained and motivated staff should be employed to supervise and control access to the area.

The Namib Sand Sea in Namibia is a good example of such an arrangement.

As for Idhan Obari which has already been invaded by the oil industry as well as by locals, control measures should focus initially on the western side which so far has not engendered any industrial interest, while the eastern side should be managed to reduce future impacts as much as possible and mitigate the damage so far.

Unless such controls and appropriate legislation and management are applied soon, these fragile areas will deteriorate fast and the damage will be irreparable.

Figure 9:  An ugly site – part of an abandoned well site in Idhan Murzuk (NW side) with metal, plastic and hydrocarbon waste left behind. In theory, this was not supposed to happen according to the environmental regulations, as oil camps and well sites must be cleaned prior to their abandonment. (Photo: M.J. Salem).
Figure 9: An ugly site – part of an abandoned well site in Idhan Murzuk (NW side) with metal, plastic and hydrocarbon waste left behind. In theory, this was not supposed to happen according to the environmental regulations, as oil camps and well sites must be cleaned prior to their abandonment. (Photo: M.J. Salem)
Figure 10: A very wide and long corridor between longitudinal dunes. A Holocene lake filled this wide depression about 5000 years ago. Deposits of the lake are  underlain by fossil dunes.
Figure 10: A very wide and long corridor between longitudinal dunes. A Holocene lake filled this wide depression about 5000 years ago. Deposits of the lake are underlain by fossil dunes.

  [/restrict]

 
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