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Core Data from the Deep Sea Drilling Project


Leg : 54    Depth Top/Bottom of Layer(m) :     0.00/    0.50
Hole: 422   Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/ 500
Sect:  1
 
Visual Text Description:
DMIL DARK YELLOWISH BROWN MARL;C 10YR4/2-DARK YELLOWISH BROWN;D HIGHLY 
DISTURBED BY DRILLING PROCESS AND PARTLY SOUPY;O SMEAR SLIDE AT 10 CM;H 
SOFT 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     0.50/    1.50
Hole: 422   Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):  500/1500
Sect:  1
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNOFOSSIL OOZE;C 5GY4/1-DARKGREENISH GREY;D 
HIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     1.50/    3.00
Hole: 422   Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1500
Sect:  2
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNOFOSSIL OOZE;C 5GY4/1-DARKGREENISH GREY,
5YR2/1-BROWNISH BLACK;S LAYER OF 5YR2/1 NANNOFOSSIL OOZE (1 CM THICK) AT 
95 CM;D MODERATELY DEFORMED;U 5YR2/1 LAYER AT 95 CM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     3.00/    4.44
Hole: 422   Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1440
Sect:  3
 
Visual Text Description:
DMIL NANNOFOSSIL OOZE;C N3-MEDIUM DARK GREY,5Y4/4-MODERATE OLIVE BROWN;S 
0-5 CM IS N3,5-137 CM IS 5Y4/4,137-144 IS ALSO 5Y4/4 BUT MORE FINE GRAINED 
AND DENSE THAN PREVIOUS LAYER,ALL NANNOFOSSIL OOZE,RATE OF DEFORMATION IS 
SLIGHT;D MODERATELY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     4.50/    6.00
Hole: 422   Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1500
Sect:  4
 
Visual Text Description:
DMIL NANNOFOSSIL OOZE;C 5Y4/4-MODERATE OLIVE BROWN,10YR4/2-DARK YELLOWISH 
BROWN,5GY3/2-GREYISH OLIVE GREEN;S HOMOGENEOUS,0-77 CM IS 5Y4/4,77-83 IS 
10YR4/2,83-150 CM IS 5GY3/2;D SLIGHTLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     6.00/    6.45
Hole: 422   Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/ 450
Sect:  5
 
Visual Text Description:
DMIL GREYISH OLIVE GREEN NANNOFOSSIL OOZE;C 5GY3/2-GREYISH OLIVE GREEN;D 
MODERATELY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     6.55/    6.63
Hole: 422   Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/ 180
Sect: CC
 
Visual Text Description:
DMIL LIGHT OLIVE NANNOFOSSIL OOZE;C 10Y5/4-LIGHT OLIVE;D MODERATELY 
DISTURBED TO 10 CM,REST SLURRY 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     6.50/    7.59
Hole: 422   Depth to Top of Core(m)      :     6.50
Core:   2   Depth Top/Bottom Interval(mm):   00/1090
Sect:  1
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNOFOSSIL OOZE;C 5GY4/1-DARKGREENISH GREY,
5GY5/2-DUSKY YELLOW GREEN;S 0-43 CM IS 5GY4/1 TO 5GY5/2 PATCHY,43-109 CM 
IS 5GY4/1,ALL NANNO OOZE;D VERY INTENSELY DISTURBED 0-43 CM,HIGHLY 
DISTURBED 43-109 CM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :     7.69/    7.67
Hole: 422   Depth to Top of Core(m)      :     6.50
Core:   2   Depth Top/Bottom Interval(mm):   00/  80
Sect: CC
 
Visual Text Description:
DMIL GRAYISH OLIVE GREEN NANNOFOSSIL OOZE;C 5GY3/2-GRAYISH OLIVE GREEN;D 
HIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    16.00/   17.50
Hole: 422   Depth to Top of Core(m)      :    16.00
Core:   3   Depth Top/Bottom Interval(mm):   00/1500
Sect:  1
 
Visual Text Description:
DMIL NANNO OOZE;C 10GY5/2-GREYISH GREEN,5Y3/2-OLIVE GRAY;S 0-122 CM IS 
10GY5/2 NANNO OOZE WITH FRAGMENTS OF MARLY CHALK (UP TO 1-1.5 CM),122-150 
CM IS 5Y3/2 NANNO OOZE;D HIGHLY DISTURBED;U FRAGMENTS OF MARLY CHALK;O 
SMEARS AT 80 AND 140 CM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    17.50/   19.00
Hole: 422   Depth to Top of Core(m)      :    16.00
Core:   3   Depth Top/Bottom Interval(mm):   00/1500
Sect:  2
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;S 5GY4/1 
NANNO OOZE WITH PATCHES AND STREAKS OF LIGHTER AND DARKER MATERIAL,THERE 
ARE IN THE OOZE FRAGMENTS OF THE SAME SEDIMENT BUT MORE DENSE;D HIGHLY 
DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    19.00/   20.50
Hole: 422   Depth to Top of Core(m)      :    16.00
Core:   3   Depth Top/Bottom Interval(mm):   00/1500
Sect:  3
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,5GY3/2-GREYISH OLIVE GREEN,
5YR2/1-BROWNISH BLACK;S 0-47 CM IS 5GY4/1,47-87 CM IS 5GY3/2,87-120 CM IS 
5GY4/1 WITH PATCHES OF LIGHTER AND DARKER MATERIALS,120-150 CM IS5GY4/1 
WITH STREAKS OF 5YR2/1,ALL IS NANNO OOZE;D HIGHLY DISTURBED;U 5YR2/1 
STREAKS 120-150 CM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    20.50/   21.59
Hole: 422   Depth to Top of Core(m)      :    16.00
Core:   3   Depth Top/Bottom Interval(mm):   00/1090
Sect:  4
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;S 0-50 CM IS 5GY4/1,50-109 CM 
IS 5GY4/1 WHICH HAS A LIGHTER SHADE THAN LAYER ABOVE,D HIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    22.00/   23.50
Hole: 422   Depth to Top of Core(m)      :    16.00
Core:   3   Depth Top/Bottom Interval(mm):   00/1500
Sect:  5
 
Visual Text Description:
DMIL NANNO OOZE;C 5G6/1-GREENISH GREY,5GY4/1-DARK GREENISH GREY;S 0-40 CM 
IS 5G6/1 NANNO OOZE,40-150 CM IS5GY4/1 OOZE WITH FRAGMENTS OF MORE DENSE 
MATERIAL (UP TO 1.5 CM);D MODERATELY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    23.50/   24.95
Hole: 422   Depth to Top of Core(m)      :    16.00
Core:   3   Depth Top/Bottom Interval(mm):   00/1450
Sect:  6
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,10Y4/2-GREYISH OLIVE;S 0-46 CM 
IS 5GY4/1 OOZE WITH FRAGMENTS OF MORE DENSER MATERIAL (UP TO 1 CM),46-53 
CM IS 10Y4/2 OOZE,53-145 CM IS SAME AS 0-46 CM;D HIGHLY DISTURBED;O SMEAR 
SLIDES AT 60 AND 120 CM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    25.10/   25.12
Hole: 422   Depth to Top of Core(m)      :    16.00
Core:   3   Depth Top/Bottom Interval(mm):   00/ 120
Sect: CC
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;D DRILLING 
BRECCIA (SLURRY) 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    25.50/   27.00
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/1500
Sect:  1
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,5G6/1-GREENISH GREY,
5G2/1-GREENISH BLACK;S ALL IS NANNO OOZE,0-50 CM IS 5GY4/1,50-90 CM IS 
5G6/1 WITH FRAGMENTS (UP TO 1 CM) OF DENSER MATERIAL,90-120 CM IS 5GY4/1,
ONTHE TOP OF THE LAYER--5G2/1 WITH DENSER FRAGMENTS,120-150 CM IS 5GY4/1 
WITH DENSER FRAGMENTS (UP TO 0.3CM);D HIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    27.00/   28.50
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/1500
Sect:  2
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,5GY3/2-GREYISH OLIVE GREEN;S 
0-40 CM IS 5GY4/1 OOZE WITH STRATIFICATION DUE TO THE PRESENCE OF MORE 
DARK LAYER WITH THICKNESS 0.5-1.0 CM,40-125 CM IS 5GY4/1 OOZE WITHOUT 
OBVIOUS STRATIFICATIONS,125-150 CM IS 5GY3/2 OOZE;D MODERATELY DISTURBED 
0-40 CM,HIGHLY DISTURBED BELOW;O SMEAR SLIDE TAKEN AT 120 CM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    28.50/   30.00
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/1500
Sect:  3
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,5G6/1-GREENISH GREY;S 0-10 CM 
IS 5GY4/1 OOZE,10-150 CM IS 5GY4/1 OOZE WITH PATCHES (SIZE UP TO 3-4 CM) 
OF 5G6/1;D HIGHLY DISTURBED;Z 11111210 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    30.00/   31.50
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/1500
Sect:  4
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNOFOSSIL OOZE;C 5GY4/1-DARKGREENISH GREY;S 
5GY4/1 OOZE WITH PATCHES OF LIGHTERMATERIAL AND FRAGMENTS (UP TO 1 CM) OF 
DENSER OOZE;D HIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    31.50/   33.00
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/1500
Sect:  5
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;S 5GY4/1 
OOZE WITH PATCHES OF LIGHTER MATERIAL AND FRAGMENTS OF DENSER SEDIMENTARY 
ROCK (MARLY CHALK) OF THE SAME COLOR;D HIGHLY DISTURBED;U FRAGMENTS OF 
MARLY CHALK 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    33.00/   34.50
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/1500
Sect:  6
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,5G6/1-GREENISH GREY;S 0-31 CM 
IS 5GY4/1 OOZE WITH DENSER FRAGMENTS,31-40 CM IS 5G6/1 OOZE,41-74 CM IS 
5GY4/1 OOZE WITH LESS DISTINCT GREENISH TINT THAN IN ABOVE LAYERAND WITH 
FRAGMENTS (UP TO 0.5 CM) OF DENSER MATERIAL,74-150 CM IS 5GY4/1 OOZE,
DARKER THAN PREVIOUS;D MODERATELY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    34.50/   34.80
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/ 300
Sect:  7
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;S 5GY4/1 OOZE WITH INTENSELY 
DEFORMED STRATIFICATION STIPULATED BY INTERCALATION OF LIGHTER AND DARKER 
LAYERS;D INTENSELY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    34.90/   34.92
Hole: 422   Depth to Top of Core(m)      :    25.50
Core:   4   Depth Top/Bottom Interval(mm):   00/ 120
Sect: CC
 
Visual Text Description:
DMIL DARK GREENISH GREY NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;D DRILLING 
SLURRY 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    35.00/   36.50
Hole: 422   Depth to Top of Core(m)      :    35.00
Core:   5   Depth Top/Bottom Interval(mm):   00/1500
Sect:  1
 
Visual Text Description:
DMIL DK.GREENISH GREY NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;S 5GY4/1 OOZE 
WITH DENSER FRAGMENTS (UP TO 1 CM);D HIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    36.50/   38.00
Hole: 422   Depth to Top of Core(m)      :    35.00
Core:   5   Depth Top/Bottom Interval(mm):   00/1500
Sect:  2
 
Visual Text Description:
DMIL NANNOFOSSIL OOZE;C 5GY4/1-DARK GREENISH GREY,5G6/1-GREENISH GREY,
5GY2/1-GREENISH BLACK;S 0-44 CM IS 5GY4/1 WITH STREAKS OF 5G6/1 AND 5GY2/1 
MATERIAL,44-101 CM IS PREDOMINANTLY 5G6/1 WITH PATCHES 5GY4/1 AND5GY2/1,
101-150 CM IS 5GY4/1 WITH PATCHES OF 5G6/1;DHIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    38.00/   39.50
Hole: 422   Depth to Top of Core(m)      :    35.00
Core:   5   Depth Top/Bottom Interval(mm):   00/1500
Sect:  3
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,5G6/1-GREENISH GREY;S 0-128 CM 
IS 5GY4/1 WITH ELONGATED ALONG VERTICAL AXIS PATCHES OF LIGHTER MATERIAL,
THE QUANTITY OF PATCHES INCREASE TO THE BOTTOM OF THE LAYER,128-140 CM IS 
5G6/1,140-150 CM IS 5GY4/1;D HIGHLY DISTURBED;O SMEAR SLIDE TAKEN AT 75 CM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    39.50/   41.00
Hole: 422   Depth to Top of Core(m)      :    35.00
Core:   5   Depth Top/Bottom Interval(mm):   00/1500
Sect:  4
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DARK GREENISH GREY,5G6/1;S 5GY4/1 OOZE WITH 
PATCHES AND STREAKS OF LIGHTER (5G6/1) MATERIAL;D HIGHLY DISTURBED 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    41.00/   42.50
Hole: 422   Depth to Top of Core(m)      :    35.00
Core:   5   Depth Top/Bottom Interval(mm):   00/1500
Sect:  5
 
Visual Text Description:
DMIL NANNO OOZE;C 5GY4/1-DK.GREENISH GREY;S 5GY4/1 OOZE WITH FRAGMENTS OF 
A DENSER MATERIAL;D HIGHLY DISTURBED;U FRAGMENTS OF A DENSER MATERIAL 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    42.50/   43.98
Hole: 422   Depth to Top of Core(m)      :    35.00
Core:   5   Depth Top/Bottom Interval(mm):   00/1480
Sect:  6
 
Visual Text Description:
DMIL NANNOFOSSIL OOZE;C 5GY4/1-DK.GREENISH GREY,5Y2/1-OLIVE BLACK,
5GY2/1-GREENISH BLACK;S 0-58 CM IS 5GY4/1 WITH FRAGMENTS OF DENSER 
MATERIAL,58-70 CM IS 5Y2/1 WITH PATCHES OF 5GY4/1,70-83 CM IS 5GY4/1,
83-124 CM IS 5Y2/1 WITH STREAKS OF 5GY4/1 WITH DENSER FRAGMENTS (UP TO 1 
CM),124-148 CM IS 5GY2/1 OOZE;D MODERATELY DISTURBED TO 125 CM,HIGHLY 
DISTURBED BELOW 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    44.10/   44.12
Hole: 422   Depth to Top of Core(m)      :    35.00
Core:   5   Depth Top/Bottom Interval(mm):   00/ 120
Sect: CC
 
Visual Text Description:
DMIL GREENISH BLACK NANNOFOSSIL OOZE;C 5GY2/1-GREENISHBLACK;D DRILLING 
SLURRY;Z 11111210 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    44.60/   44.66
Hole: 422   Depth to Top of Core(m)      :    44.50
Core:   6   Depth Top/Bottom Interval(mm):   00/ 160
Sect: CC
 
Visual Text Description:
DMIL DK.GREENISH GREY NANNO OOZE;C 5GY4/1-DARK GREENISH GREY;D DRILLING 
SLURRY 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    49.00/   50.45
Hole: 422   Depth to Top of Core(m)      :    49.00
Core:   8   Depth Top/Bottom Interval(mm):   00/1450
Sect:  1
 
Visual Text Description:
HUML NANNOFOSSIL FORAM OOZE;C 5GY3/2-GREYISH OLIVE GREEN,5GY5/2-DUSKY 
YELLOW GREEN,5Y2.5/2-BLACK;S 5GY3/2 NANNO FORAM OOZE,40-44 CM SMALL 
PATCHES,SIMILAR CALCAREOUS OOZE OF 5GY5/2,WHOLE SECTION STREAKED WITH 
DARKER 5Y2.5/2 ASH(?) RICH LAYERS;D HIGHLY DISTURBED;USMALL PATCH OF 
5GY5/2 40-44 CM;M CALCAREOUS PATCH 40-44 CM,ASH(?) 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    50.50/   51.80
Hole: 422   Depth to Top of Core(m)      :    49.00
Core:   8   Depth Top/Bottom Interval(mm):   00/1300
Sect:  2
 
Visual Text Description:
HUML NANNO-FORAM OOZE;C 5GY3/2-GREYISH OLIVE GREEN,5GY2/1-GREENISH BLACK,
10GY5/2-GREYISH GREEN;S 5GY3/2 OOZE WITH STREAKS OF 5GY2/1 SEDIMENT,
POSSIBLY CONTAINING ASH,AT 62-68 CM SMALL PATCH OF 10GY5/2 CALCAREOUSOOZE;
D HIGHLY DISTURBED;M POSSIBLY ASH 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    52.45/   53.50
Hole: 422   Depth to Top of Core(m)      :    49.00
Core:   8   Depth Top/Bottom Interval(mm):  450/1500
Sect:  3
 
Visual Text Description:
SDRL NANNO-FORAM OOZE;C 5GY3/2-GREYISH OLIVE GREEN,10GY3/2-DUSKY YELLOW 
GREEN,5GY2/1-GREENISH BLACK;S PRIMARILY A 5GY3/2 OOZE,BOTTOM 10 CM ARE 
MOTTLED WITH A 10GY3/2 OOZE,5GY2/1 STREAKS ARE PRESENT THROUGHOUT,THEY ARE 
WISPY,NEAR VERTICAL BANDS OF APPROX. 0.5 CM THICKNESS;D HIGHLY DISTURBED 
AND WATERY;O VOID 55-65CM,SMEARS AT 50 AND 120 CM;H FIRM 
 
 
Leg : 54    Depth Top/Bottom of Layer(m) :    54.04/   54.32
Hole: 422   Depth to Top of Core(m)      :    49.00
Core:   8   Depth Top/Bottom Interval(mm):  540/ 820
Sect:  4
 
Visual Text Description:
SDRL GREYISH OLIVE GREEN NANNOFOSSIL-FORAM OOZE;C 5GY3/2-GREYISH OLIVE 
GREEN,5G6/1-GREENISH GREY;S 5GY3/2 OOZE WITH A FIRMER 5G6/1 OOZE AT BASE;D 
HIGHLY DISTURBED;H WATERY 
 
 
    

Introduction


Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]

These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced in 1989 and modified in 2000 by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center (now part of the National Centers for Environmental Information), and collocated World Data Center for Marine Geology and Geophysics, Boulder (now part of the World Data Service for Geophysics). Data were compiled in cooperation with the U.S. Science Support Program, of the Joint Oceanographic Institutions, Inc. (now the Consortium for Ocean Leadership), and the U.S. National Science Foundation.

Please see NOAA's privacy and disclaimer information. Send questions or comments to mgg.info@noaa.gov.

Department of Commerce > NOAA > NESDIS > NCEI > doi:10.7289/V54M92G2