Chapter 11 The Geology and Hydrogeology of the Capitan Aquifer: A Brief Overview
Matthew M. Uliana1
The Capitan aquifer occurs in the Capitan Reef Complex, an ancient reef that formed around the margins of the Delaware Basin (fig. 11-1) (Ashworth and Hopkins, 1995). The Delaware Basin was an embayment covered by a shallow sea that persisted throughout most of the Permian. Most of the reef complex was buried by tectonism and subsequent sedimentation; however, relatively undeformed remains of the reef are exposed in West Texas and New Mexico, with exceptional exposures in Guadalupe Mountains National Park (Bebout and Kerans, 1993). Remnants of the reef are also exposed in the Apache and Glass Mountains of West Texas. This paper provides a brief overview of the structural history and stratigraphy of the Delaware Basin. The hydrostratigraphic relations between the Capitan Reef Complex and the other basin facies are also discussed. Groundwater occurrence and flow within the Capitan Reef Complex, as ...
United States Patent
 DIFFRACTOID GRATING
4,192,994 Mar. 11, 1980
CONFIGURATION FOR X-RAY AND ULTRAVIOLET FOCUSING
U. S. PATENT'DOCUMENTS
3,639, / ,024,391 SA ,063, /1977
Sidney 0. Kastner, Greenbelt, Md.
Goshi et al. 250/276 Bosserman et al.. 250/213 VT Lepere.. 350/162 R
 Assignee: The Udted States of America as represented by the Administrator of
the National Aeronautics and Space Administration, Washington, D.C.
Primary Examiner-Craig E. Church Assistant Examiner-Thomas P.OHare Attortiey, Agent. or Firm-Robert D. Marchant; John R. Manning; John 0. Tresansky
[2l] Appl. No.: 943, 1 Filed:
Sep. , 1978
 Int. Cl.2. GOlN 23/20; G21K 1/06  U.S. c1.. 250/280, 230/277 CH; 350/162 R;356/334  Field of Search.. 250/280, 272,273,276,. 7 ,277 CH, 250/505,213 VT; 350/162 R, /334
ABSTRACT There is disclosed herein an aspheric grating which is operable to image local or distant point sources sharply in a designated wavelength, Le. ...