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Subject: AERIAL VIEWS OF AFRICA DINESH VORA

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AERIAL VIEWS OF AFRICA

EXPLORATION PHOTOGRAPHY OF GEORGE STEINMETZ

NATIONAL GEOGRAPHIC PICTURES
DINESH VORA

[1]

Evoking a scene from biblical times, caravans arrive at the salt mines of Lake Asele, 381 feet below sea level. For centuries salt blocks, called amole, were used throughout Ethiopia as money.

[2]
Workers at Lake Afrera process raw salt. Production was
temporarily halted last year when a volcano in neighboring
Eritrea erupted, blanketing the salt in ash.

[3]
At a salt-extraction facility in northern Ethiopia, briny water is pumped from hypersalty Lake Afrera into evaporation ponds.

[4]

Ancient lava flows near the Awash River in Ethiopia resemble the vertebrae of a fossilized beast.

[5]
Sulfur and algae turn hot springs into pools of living color. The water is condensation from hot gases rising from magma chambers. As the water evaporates, salts and minerals form a vivid crust.

[6]
Groundwater heated to boiling goes up in steam
at a geyser field northwest of Lake Abbe.

[7]
A lake of lava bubbles atop Erta Ale, the region's most active volcano.

[8]

Restless faults have tilted these massive slabs of bedrock like dominoes. One of the canyons provides a highway corridor for truck traffic moving between Ethiopia and Djibouti.

[9]
Sculpted by winds that consistently blow from east to west, sand dunes called barchans migrate across an ancient seafloor, rising about six feet and spreading 20 to 30 feet across.

[10]
Ramparts of salt, mud, and potash, some 80 feet tall, rise above a maze of canyons and crags on the flank of Dallol Mountain. The tortuous shapes are the work of storms and flash floods.

[11]
Spires called travertine chimneys are fashioned by mineral-bearing vapor rising from underground magma chambers. As the vapor evaporates, it deposits minerals around each vent.

[12]

Djibouti's Lake Assal is one of the world's saltiest lakes. Intense heat and strong winds fuel rapid evaporation, leaving a bathtub ring of minerals around the lake's shore

[13]
Lake Assal marks Africa's lowest point, 512 feet below sea level.
A Djibouti-based salt-production company calls the lake the
"largest undeveloped salt reserve in the world."