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Showing results for the phrase "Vendor: W. A. Benjamin, Inc. :: vendor_series" in Source Type Detail.

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Description
A map of the East African Rift system showing fossil man localities, including Koobi Fora, Natron and Olorgesailie.
Date of Photo
1975
Holdings
35mm slide: 16040
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Satellite photograph of the north end of Lake Turkana (Rudolf) showing the Omo River winding southwards to reach the lake by way of a birds-foot delta. Lake Turkana occupies the lowest part of a Rift Valley trough (graben). To the east of it a shelf-like area of pale-colored terrain can be seen. This is the area in which sedimentary deposits from the time range 4.5 to 1 million years are eroding so as to reveal their contained fossils and artifacts
Date of Photo
1975
Holdings
35mm slide: 16041
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
A block diagram of the Koobi Fora (East Rudolf) area. This shows in greater detail the physiography of the area that is yielding fossil evidence of early man. Plio-pleistocene sediments are exposed over a large part of a shelf-like strip of terrain between the lake and the rim of Tertiary volcanics. The area is approximately 50 miles from north to south and 15 to 20 miles from east to west. The director of the National Museum of Kenya, Richard Lea
Date of Photo
1975
Holdings
35mm slide: 16042
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
An air-view of the modern shoreline of Lake Turkana and the delta of the Il Eriet River. Many aspects of the situation are the same as when the fossil bearing sediments were deposited; a sandy bottomed watercourse winds its way through a silt covered floodplain to build out sand and silt banks at the river mouth. Fossils occur in situations representing all these environments of the river, but in Pliocene to early Pleistocene times, the rivers appea
Date of Photo
1975
Holdings
35mm slide: 16043
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Reed beds along the shore of Lake Rudolf. Behind is one of the expedition's subsidiary camps.
Date of Photo
1975
Holdings
35mm slide: 16044
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
The modern lakeshore floodplains of Lake Rudolf support a distinctive community of animals that are dependent on the lake for water and some grazing. There is one such species- the topee (Damaliscus lunatus).
Date of Photo
1975
Holdings
35mm slide: 16045
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Another species tied to the lakeshore by water requirements is Burchell's zebra (Equus burchelli).
Date of Photo
1975
Holdings
35mm slide: 16046
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
In the hinterland there is no surface water for many months each year. Only certain animals such as the Oryx can survive under these conditions.
Date of Photo
1975
Holdings
35mm slide: 16048
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
A second species of zebra, Grevy's zebra, is also independent of surface water.
Date of Photo
1975
Holdings
35mm slide: 16049
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Along the tree-lined seasonal stream channels, reticulated giraffe browse- another species able to live for prolonged periods without drinking.
Date of Photo
1975
Holdings
35mm slide: 16050
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series
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Description
The semiarid conditions are ideal for fossil hunting since large areas of eroded ground are virtually devoid of plant cover and whatever fossils have washed out can be readily seen.
Date of Photo
1975
Holdings
35mm slide: 16051
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
A richly fossiliferous locality in the Lower Member of the Koobi Fora Formation, area 105.
Date of Photo
1975
Holdings
35mm slide: 16052
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
The complete skull of a fossil crocodile cleared by Dr. Abell and ready for transport to the Kenya National Museum. It is hinged open with the mandible on the viewer's left and the palate on the right.
Date of Photo
1975
Holdings
35mm slide: 16053
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
An example of a particularly well-preserved fossil- the complete skull of a hyena.
Date of Photo
1975
Holdings
35mm slide: 16054
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
The success of the Koobi Fora expeditions in discovering a wide range of important new fossils is largely due to the existence of a highly trained and very skilled team of fossil hunters. Their activities are coordinated by Richard Leakey and they are lead in the field by Mr. Kamoya Kimeu, who has been professionally engaged in this pursuit for more than 15 years. Here the fossil hunting team is seen in the field.
Date of Photo
1975
Holdings
35mm slide: 16055
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
The Koobi Fora expeditions have been made by the large number of well-preserved hominid fossils discovered. The mandible of a juvenile hominid just appearing at the surface as its matrix of sands are eroded away.
Date of Photo
1975
Holdings
35mm slide: 16056
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Richard Leakey, the initial discoverer of the potential of the area is seen excavating carefully so that the hominid specimen can be collected for the National Museum.
Date of Photo
1975
Holdings
35mm slide: 16057
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Part of the terrain in which the hunt for fossils and archaeological remains is carried out. In the foreground area the brown-sandstone-mantled outcrops of the Lower Memer with the find spot of the hominid skull 1470 being searched and sieved. In the background is the Farari escarpment, formed by the more rapidly eroding Upper Member deposits (Area 131).
Date of Photo
1975
Holdings
35mm slide: 16058
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
The terrain in area 105 where the most important Lower Member archaeological sites have been found.
Date of Photo
1975
Holdings
35mm slide: 16059
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS (Fx Jj3)- volcanic ash (tuff) has filled in delta distributary channels which can be traced winding amongst floodplain deposits which were laid down just inland of the former lakeshore. Eroding out of the uppermost deposits of the channel are the bones of a single hippopotamus carcass. The volcanic ash is the KBS tuff.
Date of Photo
1975
Holdings
35mm slide: 16060
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series
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Description
Site HAS: The bones of the hippo as collected and reassembled.
Date of Photo
1975
Holdings
35mm slide: 16061
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: sharp stone flakes that had eroded out amongst the bones suggested a possible connection between hominids and the carcass.
Date of Photo
1975
Holdings
35mm slide: 16062
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: a grid was measured out and the bones and artifacts picked up, then a test trench dug.
Date of Photo
1975
Holdings
35mm slide: 16063
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: an old land surface was identified in the test trench and stone and bone specimens excavated from it. A larger cutting was then opened at this horizon.
Date of Photo
1975
Holdings
35mm slide: 16064
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: the eroded surface of the ground to be excavated being swept and cleaned.
Date of Photo
1975
Holdings
35mm slide: 16065
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: excavation in progress controlled by a grid of half-meter squares. H. W. K. Harris, who was one of the site supervisors at work.
Date of Photo
1975
Holdings
35mm slide: 16066
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: digging had to be done by the careful tapping of a small chisel. J. C. Onyango-Abuje, archaeologist at the National Museum of Kenya, is seen excavating.
Date of Photo
1975
Holdings
35mm slide: 16067
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: a sharp flake in place on the old ground surface.
Date of Photo
1975
Holdings
35mm slide: 16068
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: the same flake from slide #16068 but lifted from its impression in the ground.
Date of Photo
1975
Holdings
35mm slide: 16069
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: a hammerstone shows that stone was flaked at this site- presumably to generate sharp-edged flakes for use in cutting up the hippo.
Date of Photo
1975
Holdings
35mm slide: 16070
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series
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Description
Site HAS: a representative series from the 119 artifacts recovered from the excavation. The categories are marked: angular fragments, flake fragments, whole flakes, chopper/cores plus the hammerstone.
Date of Photo
1975
Holdings
35mm slide: 16071
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS: a small core-chopper emerging in the excavation.
Date of Photo
1975
Holdings
35mm slide: 16072
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site HAS- plans and sections of the findings. Left: a plot of the location of bone specimens including the hippo bones on the surface. Right: a plot of the location of stone artifacts. Center: two slices through the site showing how the material forms a horizon representing an old ground surface.
Date of Photo
1975
Holdings
35mm slide: 16073
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): (Fx Jj1)- View of the site from the adjacent gully. The beds in the foreground are deposits laid down in lagoons and swamps at the lake margin. The pale outcrop above is the KBS tuff which here fills an ancient distributary channel system that was established over the swamps as the lake retreated. The early prehistoric occupants of the site camped on the sandy substratum provided by the tuff filled channel.
Date of Photo
1975
Holdings
35mm slide: 16074
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): In 1969 Dr. A. K. Behrensmeyer found these stone artifacts eroding out of the tuff. This was the first discovery of in stiu artifacts from the Koobi Fora Formation.
Date of Photo
1975
Holdings
35mm slide: 16075
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): General view of the site looking up the axis of the former channel.
Date of Photo
1975
Holdings
35mm slide: 16076
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): Excavation in progress. The consolidated fine, grey tuff dust that fills the swale left by the abandoned channel is being gently chipped away to uncover the top of the sandy streambed.
Date of Photo
1975
Holdings
35mm slide: 16077
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): The consolidated deposits are dug in 5 cm increments by tapping a small chisel. The lumps and crumbs of tuff are broken on a board with a rubber mallet and then sent for screening. Almost all material is found while still in place as excavation proceeds. Excavator, Mr. J. Kimengech of the Kenya National Museum.
Date of Photo
1975
Holdings
35mm slide: 16078
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): Shows the base of the pale grey tuff dust layer being "peeled" off the tuff sand layer to expose the archaeological horizon at the interface. Excavators, Mr. J. Barthelme, University of California and Mr. Msau of the National Museum.
Date of Photo
1975
Holdings
35mm slide: 16079
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): A polyhedron (core/chopper) has just been uncovered on the floor. Excavator, Mr. J. Kimengech. Goggles are worn because of the high dusty winds that prevail.
Date of Photo
1975
Holdings
35mm slide: 16080
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series
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Description
Site KBS (Kay Behrensmeyer Site): a slender, sharp-edged portion of a bladelike flake as found on the archaeological horizon.
Date of Photo
1975
Holdings
35mm slide: 16081
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

Access to media is restricted to U-M users.
Description
Site KBS (Kay Behrensmeyer Site): A core/chopper being lifted from its place where it was partly embedded in the sand under the archaeological horizon.
Date of Photo
1975
Holdings
35mm slide: 16082
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): Among the scatter of discarded artifacts are broken-up animal bones. Glynn Isaac works at disengaging a fragment of antelope pelvis. Presumably this is food refuse.
Date of Photo
1975
Holdings
35mm slide: 16083
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): A representative series of the 129 artifacts which have been recovered from this site. Top row, angular fragments (= broken flakes without a talon). Second row, split and snapped flakes. Third and fourth rows, whole flakes. Bottom row, core-choppers, polyhedrons, discoids, etc.
Date of Photo
1975
Holdings
35mm slide: 16084
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): Part of the tooth row of a medium-sized antelope (a Waterbuck).
Date of Photo
1975
Holdings
35mm slide: 16085
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): A chopper from KBS.
Date of Photo
1975
Holdings
35mm slide: 16086
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

Access to media is restricted to U-M users.
Description
Site KBS (Kay Behrensmeyer Site): A plan of the location of in situ finds at KBS. The excavation has revealed part of a patch of discarded material some 12 - 15 inches in diameter. The left-hand portion was destroyed by erosion before discovery of the site. Part has deliberately been left unexcavated so as to be available for future research.
Date of Photo
1975
Holdings
35mm slide: 16087
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

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Description
Site KBS (Kay Behrensmeyer Site): In the silts covering the archaeological site numerous leaf casts were found. The species has not been identified but they may belong to the genus Ficus. Very probably groves of trees grew along the sandy channel and their shade may have been among the attractions leading to hominid occupation of this spot.
Date of Photo
1975
Holdings
35mm slide: 16088
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

Access to media is restricted to U-M users.
Description
Site KBS (Kay Behrensmeyer Site): A contour plan showing the form of the outcrop and the layout of the excavation (see Human Origins, Isaac et al. 1975, W. A. Benjamin, Inc., for details).
Date of Photo
1975
Holdings
35mm slide: 16089
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series

Access to media is restricted to U-M users.
Description
Site KBS (Kay Behrensmeyer Site): A schematic reconstruction of the paleogeographic setting of the sites KBS and HAS in a delta floodplain just inland of a swampy lakeshore with lagoon (this reconstruction is subject to some revision as a result of more recent geological work).
Date of Photo
1975
Holdings
35mm slide: 16090
Source Type Detail
Vendor: W. A. Benjamin, Inc. :: vendor_series
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