Extent of Pleistocene Lakes in the Western Great Basin

Online link https://geo-nsdi.er.usgs.gov/metadata/map-mf/2323/metadata.faq.html
Description During the Pliocene to middle Pleistocene, pluvial lakes in the western Great Basin repeatedly rose to levels much higher than those of the well-documented late Pleistocene pluvial lakes, and some presently isolated basins were connected. Sedimentologic,
Originators U.S. Geological Survey and Reheis, Marith C.
Publication U.S. Geological Survey Miscellaneous Field Studies Map MF-2323

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Overview of attributes

>The dataset may be downloaded in either ARC/INFO export format (.e00 files) or
>ARCView shapefile format.  A printable PDF version of the map is also available.
>The dataset consists of four coverages (ENNISGEO, ENNISFLT, ENNISSYM, and
>ENNISATT) and a  .tiff file containing the scanned USGS topographic basemap.  The
>coverages containing both arc and polygon or point entities, ENNISGEO/ENNISATT,
>have been divided into two separate sets of files in the ARCView shapefile
>format named ENNISGLN/ENNISALN and ENNISGPT/ENNISAPT for the line and point
>entities respectively.  All coverages contain the standard ARC/INFO items in
>addition to the items defined in more detail below.
>
>--------------------------------------------------------------------------------
>
>ENNISGEO: Polygon coverage containing all contacts and known or approximated
>fault lines along with unit label points.
>
>PAT Item Definitions:
>UNIT_SYM is a character item defining the geologic unit represented by each
>polygon using the unit abreviations defined in the accompanying pamphlet
>(Proterozoic = !, Cambrian = _, Pennsylvanian = &, and Triassic = @)
>SHADE_SYM is an integer item defining the cartographic color of each polygon
>from the shadeset ctr269.shd
>
>**************************ennisgeo.pat******************************************
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME     INDEXED?
>    1  AREA                   8    18     F      5                        -
>    9  PERIMETER              8    18     F      5                        -
>   17  ENNISGEO#              4     5     B      -                        -
>   21  ENNISGEO-ID            4     5     B      -                        -
>   25  SHADE_SYM              3     3     I      -                        -
>   28  UNIT_SYM               8     8     C      -                        -
>
>Record  CASE# FREQUENCY UNIT_SYM SHADE_SYM
>     1      1     2                0
>     2      2     2     !Abg     109
>     3      3     8     !Abs      71
>     4      4     2     !Agg     107
>     5      5     7     !Aif     118
>     6      6     1     !Amd      88
>     7      7     5     !Ams      72
>     8      8    30     !Aph      69
>     9      9    14     !Ass     155
>    10     10     6     !di       99
>    11     11   108     &Mqa     246
>    12     12    25     Aag      127
>    13     13   182     Aam      155
>    14     14    26     Abh       97
>    15     15     4     Abm      132
>    16     16     5     Abs      159
>    17     17     7     Agd      201
>    18     18    14     Agg       65
>    19     19    16     Agn      102
>    20     20    11     Agp       85
>    21     21     6     Ags      114
>    22     22     1     Aif       99
>    23     23    24     Ama       84
>    24     24    34     Amb       88
>    25     25    27     Aq       172
>    26     26   246     Aqf       91
>    27     27    15     At        67
>    28     28    26     Aum      140
>    29     29    29     J@ed     125
>    30     30    72     J@u      234
>    31     31    39     Jm       235
>    32     32     5     Kb        50
>    33     33    65     Kc       124
>    34     34    68     Kd        77
>    35     35    38     Kev      120
>    36     36    92     Kf       144
>    37     37    13     Kgd       75
>    38     38   122     Kk       208
>    39     39     7     Kl        79
>    40     40    11     Kll       82
>    41     41     4     Klm       81
>    42     42     9     Klu       80
>    43     43    71     Kmo      145
>    44     44   114     Kmt      164
>    45     45     1     Ks        49
>    46     46    32     Ktc      122
>    47     47    10     Ku       242
>    48     48    88     MDtj     250
>    49     49     5     Mbs      247
>    50     50    41     Ml       252
>    51     51    58     Mm       248
>    52     52    38     Mmc      240
>    53     53    16     O_rm     257
>    54     54     7     PMu      244
>    55     55    94     Ps       245
>    56     56    25     QTbf      62
>    57     57    92     Qal        1
>    58     58    44     Qcl        2
>    59     59     3     Qd        16
>    60     60    15     Qf         4
>    61     61     5     Qfc       10
>    62     62    54     Qg       218
>    63     63    15     Qgc        3
>    64     64   236     Ql        11
>    65     65    69     Qr         7
>    66     66     1     Qs        11
>    67     67   142     Qt         9
>    68     68   103     Qti       37
>    69     69     4     TKf       30
>    70     70    11     TKg       45
>    71     71     5     Tai       22
>    72     72    10     Tam       21
>    73     73    39     Tas       20
>    74     74     2     Tc        25
>    75     75    10     Tg        48
>    76     76    78     Tht       18
>    77     77    12     Ti        34
>    78     78    10     Tl        14
>    79     79     2     Tls       64
>    80     80    17     Ts        12
>    81     81    13     Tv        24
>    82     82     1     Tvd       23
>    83     83     4     Tvr        6
>    84     84     6     Tvt       41
>    85     85    18     Tvv       24
>    86     86    87     _m       228
>    87     87    18     _mi      263
>    88     88    15     _rp      115
>    89     89    14     _u       262
>    90     90    78     _wf      266
>    91     91    94     water    216
>
>********************************************************************************
>
>AAT Item Definitions:
>LINE_TYPE is a character item defining the geologic line type
>LINE_CODE is an integer item defining a numerical code which directly correlates
>to LINE_TYPE
>LINE_SYM is an integer item defining the cartographic line style from the lineset
>alcwrg.lin
>
>**************************ennisgeo.aat******************************************
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME     INDEXED?
>    1  FNODE#                 4     5     B      -                        -
>    5  TNODE#                 4     5     B      -                        -
>    9  LPOLY#                 4     5     B      -                        -
>   13  RPOLY#                 4     5     B      -                        -
>   17  LENGTH                 8    18     F      5                        -
>   25  ENNISGEO#              4     5     B      -                        -
>   29  ENNISGEO-ID            4     5     B      -                        -
>   33  LINE_TYPE             25    25     C      -                        -
>   58  LINE_CODE              3     3     I      -                        -
>   61  LINE_SYM               3     3     I      -                        -
>
>Record  CASE# FREQUENCY LINE_CODE LINE_TYPE                 LINE_SYM
>     1      1  6917       1       certain contact            25
>     2      2   320       2       approximate contact        26
>     3      3   326       4       certain fault               1
>     4      4     1       5       approximate fault           3
>     5      5   873       7       certain normal fault        1
>     6      6    12       8       approximate normal fault    3
>     7      7   170      10       certain reverse fault       1
>     8      8     4      11       approximate reverse fault   3
>     9      9   621      13       certain thrust fault        1
>    10     10     3      14       approximate thrust fault    3
>    11     11     6      16       detachment fault            3
>    12     12   219      30       dacite sill (Kd)            1
>    13     13    82      40       diabase dike (!di)          1
>    14     14     1      60       marble (Ama)                1
>    15     15   218      90       water contact              25
>    16     16   337      99       map boundary                1
>
>********************************************************************************
>
>--------------------------------------------------------------------------------
>
>ENNISFLT: Arc coverage containing all structure lines including faults and folds.
>
>AAT Item Definitions:
>LINE_TYPE is a character item defining the geologic line type
>LINE_CODE is an integer item defining a numerical code which directly correlates
>to LINE_TYPE
>LINE_SYM is an integer item defining the cartographic line style from the lineset
>alcwrg.lin
>
>**************************ennisflt.aat******************************************
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME     INDEXED?
>    1  FNODE#                 4     5     B      -                        -
>    5  TNODE#                 4     5     B      -                        -
>    9  LPOLY#                 4     5     B      -                        -
>   13  RPOLY#                 4     5     B      -                        -
>   17  LENGTH                 8    18     F      5                        -
>   25  ENNISFLT#              4     5     B      -                        -
>   29  ENNISFLT-ID            4     5     B      -                        -
>   33  LINE_TYPE             25    25     C      -                        -
>   58  LINE_CODE              3     3     I      -                        -
>   61  LINE_SYM               3     3     I      -                        -
>
>Record  CASE# FREQUENCY LINE_CODE LINE_TYPE                 LINE_SYM
>     1      1    60       3       concealed contact          43
>     2      2   326       4       certain fault               1
>     3      3     1       5       approximate fault           3
>     4      4     6       6       concealed fault            44
>     5      5   873       7       certain normal fault        1
>     6      6    12       8       approximate normal fault    3
>     7      7    45       9       concealed normal fault     44
>     8      8   170      10       certain reverse fault       1
>     9      9     4      11       approximate reverse fault   3
>    10     10    35      12       concealed reverse fault    44
>    11     11   619      13       certain thrust fault        1
>    12     12     3      14       approximate thrust fault    3
>    13     13    60      15       concealed thrust fault     44
>    14     14     6      16       detachment fault            3
>    15     15   227      20       certain fold axis          25
>    16     16    21      22       concealed fold axis        43
>    17     17    34      60       marble (Ama)                1
>    18     18   172      98       7.5 min tic marks          25
>
>********************************************************************************
>
>--------------------------------------------------------------------------------
>
>ENNISSYM: Arc coverage containing cartographic structural line decorations
>(sawteeth, bar-and-ball symbols, fold arrows).
>
>AAT Item Definitions:
>LINE_SYM is an integer item defining the cartographic line style from the lineset
>alcwrg.lin
>
>**************************ennissym.aat******************************************
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME     INDEXED?
>    1  FNODE#                 4     5     B      -                        -
>    5  TNODE#                 4     5     B      -                        -
>    9  LPOLY#                 4     5     B      -                        -
>   13  RPOLY#                 4     5     B      -                        -
>   17  LENGTH                 8    18     F      5                        -
>   25  ENNISSYM#              4     5     B      -                        -
>   29  ENNISSYM-ID            4     5     B      -                        -
>   33  LINE_SYM               3     3     I      -                        -
>
>Record  CASE# FREQUENCY LINE_SYM
>     1      1  4528      25
>
>********************************************************************************
>
>--------------------------------------------------------------------------------
>
>ENNISATT: Arc and point coverage containing bedding and foliation attitude
>information in the form of cartographic strike and dip symbols (arcs) and dip
>values (points).
>
>PAT Item Definitions:
>DIP is a character item defining the dip angle in degrees (ranging from 0-90)
>
>**************************ennisatt.pat******************************************
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME     INDEXED?
>    1  AREA                   8    18     F      5                        -
>    9  PERIMETER              8    18     F      5                        -
>   17  ENNISATT#              4     5     B      -                        -
>   21  ENNISATT-ID            4     5     B      -                        -
>   25  DIP                    8     8     C      -                        -
>
> Values for DIP range from 2 to 89
>
>********************************************************************************
>
>AAT Item Definitions:
>LINE_SYM is an integer item defining the cartographic line style from the lineset
>alcwrg.lin
>
>**************************ennisatt.aat******************************************
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME     INDEXED?
>    1  FNODE#                 4     5     B      -                        -
>    5  TNODE#                 4     5     B      -                        -
>    9  LPOLY#                 4     5     B      -                        -
>   13  RPOLY#                 4     5     B      -                        -
>   17  LENGTH                 8    18     F      5                        -
>   25  ENNISATT#              4     5     B      -                        -
>   29  ENNISATT-ID            4     5     B      -                        -
>   33  LINE_SYM               3     3     I      -                        -
>
>Record  CASE# FREQUENCY LINE_SYM
>     1      1  6963       1
>
>********************************************************************************
>--------------------------------------------------------------------------------
>

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