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Amba Aradam is a
table mountain Table Mountain ( naq, Huriǂoaxa, lit= sea-emerging; af, Tafelberg) is a flat-topped mountain forming a prominent landmark overlooking the city of Cape Town in South Africa. It is a significant tourist attraction, with many visitors using the ...
in northern
Ethiopia Ethiopia, , om, Itiyoophiyaa, so, Itoobiya, ti, ኢትዮጵያ, Ítiyop'iya, aa, Itiyoppiya officially the Federal Democratic Republic of Ethiopia, is a landlocked country in the Horn of Africa. It shares borders with Eritrea to the Er ...
. Located in the Debub Misraqawi (Southeastern) Zone of the
Tigray Region The Tigray Region, officially the Tigray National Regional State, is the northernmost Regions of Ethiopia, regional state in Ethiopia. The Tigray Region is the homeland of the Tigrayan, Irob people, Irob, and Kunama people, Kunama people. Its ...
, between
Mek'ele Mekelle ( ti, መቐለ, am, መቀሌ, mäqälle, mek’elē) or Mekele is a special zone and capital of the Tigray Region of Ethiopia. Mekelle was formerly the capital of Enderta awraja in Tigray. It is located around north of the Ethiopi ...
and
Addis Abeba Addis Ababa (; am, አዲስ አበባ, , new flower ; also known as , lit. "natural spring" in Oromo), is the capital and largest city of Ethiopia. It is also served as major administrative center of the Oromia Region. In the 2007 census, t ...
, it has a latitude and longitude of and an elevation of . The name in Tigrinya is ''Imba Aradom'', but international usage in geology ( Amba Aradam Formation) and history (battles in the 1930s) have coined the name ''Amba Aradam''.


Geology

The outcropping
bedrock In geology, bedrock is solid rock that lies under loose material ( regolith) within the crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface material. An exposed portion of be ...
consists of
Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ...
, sub-horizontally layered or slightly inclined, marine varicoloured
marls Marl is an earthy material rich in carbonate minerals, clays, and silt. When hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae. Marl makes up the lower par ...
and marly clays with interbedded
limestones Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when t ...
, sandstones and
gypsum Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and dr ...
layers, that are part of the Agula Shales Formation. These are unconformably overlain by
Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...
continental
conglomerate Conglomerate or conglomeration may refer to: * Conglomerate (company) * Conglomerate (geology) * Conglomerate (mathematics) In popular culture: * The Conglomerate (American group), a production crew and musical group founded by Busta Rhymes ** Co ...
s,
sandstones Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...
and
laterite Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by ...
levels, belonging to the Amba Aradam Formation, which is obviously named after the mountain. The unconformity is due to a
planation In geology and geomorphology a planation surface is a large-scale surface that is almost flat with the possible exception of some residual hills. The processes that form planation surfaces are labelled collectively planation and are exogenic (chi ...
episode which followed the pre-Cretaceous
marine regression A marine regression is a geological process occurring when areas of submerged seafloor are exposed above the sea level. The opposite event, marine transgression, occurs when flooding from the sea covers previously-exposed land. Evidence of marin ...
.
Dolerite Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grained ...
sill Sill may refer to: * Sill (dock), a weir at the low water mark retaining water within a dock * Sill (geology), a subhorizontal sheet intrusion of molten or solidified magma * Sill (geostatistics) * Sill (river), a river in Austria * Sill plate, a ...
s and laccolites of
Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but ...
age are interlayered within the Agula Shales. Small dolerite necks are exposed on the westernmost edge of the upper escarpment and west of the Amba Aradam summit.


Vegetation

The present-day spontaneous vegetation is dominated by Juniperus procera,
Eucalyptus camaldulensis ''Eucalyptus camaldulensis'', commonly known as the river red gum, is a tree that is endemic to Australia. It has smooth white or cream-coloured bark, lance-shaped or curved adult leaves, flower buds in groups of seven or nine, white flowers a ...
and
Podocarpus gracilior ''Afrocarpus gracilior'' (syn. ''Podocarpus gracilior'') is a species of coniferous tree in the family Podocarpaceae known as benet in Marakwet and East African yellowwood, African fern tree, or bastard yellowwood in English It is native to east ...
, although farming and grazing have reduced it to a sparse shrub cover, except for limited areas around churches where the holy character of the places allows their preservation.


Settlements

Human settlements are scattered around the main relief, being usually located on the most favourable
topographic situations Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary sci ...
, such as flat surfaces and foot slopes, where
colluvial Colluvium (also colluvial material or colluvial soil) is a general name for loose, unconsolidated sediments that have been deposited at the base of hillslopes by either rainwash, sheetwash, slow continuous downslope creep, or a variable combinati ...
deposits allow subsistence farming. Major town on the foot of the mountain is Hintalo, which used to be capital of Tigray in the 19th century, after which large parts of the town were abandoned. Ruins of the abandoned quarters were observed in 1868 and are still present nowadays.


History

The mount is famous for the
Battle of Enderta The Battle of Amba Aradam (also known as the Battle of Enderta) was a battle fought on the northern front of what was known as the Second Italo-Abyssinian War. This battle consisted of attacks and counter-attacks by Italian forces under Marshal ...
that the Italians fought in order to capture Amba Aradam on 15 February 1936, and for the massacre three years later, as an action against the '' Arbegnoch'', or Ethiopian partisans. Between 9–11 April 1939, a group of ''Arbegnoch'', led by Abebe Aregai, had taken refuge in the Amezena Washa (Cavern of the Rebels), which was in Amba Aradam. The party included members of the ''Arbegnoch'', but also their relatives, wounded, and other refugee non-combatants. On 9 April 1939, the chemical platoon of the Granatieri di Savoia Division attacked the ''Arbegnoch'' using bombs with poison gas, killing most of those inside. Only fifteen persons succeeded in escaping from the cave. Those who continued the resistance inside the cave were killed with flamethrowers. The extent of the cave made it difficult to explore for the remaining members of the resistance who were still within, so the Italian military command gave the order to seal it with explosives: Paolo Rumiz
"Etiopia: quella strage fascista mai raccontata"
'La Repubblica'', 22 Maggio 2006.


References

{{reflist Mountains of Ethiopia Tigray Region