Smithsonian miscellaneous collections . >Ji^ Section 29 South Fence —^ 29, 2832T33 X X - T 9 N, R 34 e MAP OF THE SAN JON SITE EASTERN NEW MEXICO EXPLANATION Pleistocene(Undifferentiated) Pliocene Cap RocU Ogaliala FormationPliocene (Unleached) Purgatoire FormationLower Cretaceous Chinle FormationTnassic Contact of Leached and Unleached Ogaliala Dashed line indicates inferred contact Location of Geologic Sections AREA I Location of Areas of Archeologic Excavabions Location of Photographs ?^— Fence line Intermittent streamExtent of Gully 2QO O zoo *00 feet Topographic Control From
Smithsonian miscellaneous collections . >Ji^ Section 29 South Fence —^ 29, 2832T33 X X - T 9 N, R 34 e MAP OF THE SAN JON SITE EASTERN NEW MEXICO EXPLANATION Pleistocene(Undifferentiated) Pliocene Cap RocU Ogaliala FormationPliocene (Unleached) Purgatoire FormationLower Cretaceous Chinle FormationTnassic Contact of Leached and Unleached Ogaliala Dashed line indicates inferred contact Location of Geologic Sections AREA I Location of Areas of Archeologic Excavabions Location of Photographs ?^— Fence line Intermittent streamExtent of Gully 2QO O zoo *00 feet Topographic Control From Survey byROBERT H NAERRILL, 1941 Fig. 4.—Map of the San Jon site showing location of geologic sections, photographs, and archeological excavations. R 34- E R 35 ? Cap rock^3 Attitude of MesozoicSediments ,y Normal fault after Dobrovolnyand Summerson (1946)\ Indicates downthrown sideo Spring Primary roads, oiled or gravelled=== Secondary roads, graded Many ungraded but passableroads follow section linesHouses omitted Contour interval 20 feetTopography sketched from barometer traverses inl94KJudson), 1942 (judson, Bryan and McCamn),l947CJudson). Datum U. and 1921, elev. 4957 feet. Base compiled fromoffice sheets and air photos of by Judson 34 R 35 E f the San Jon site. NO. I GEOLOGY OF THE SAN JON SITE—JUDSON 13 healed scars of extinct depressions. The depression is character-istic not only of the Plains of the present but also of the past backto the beginning of the Pleistocene.
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
