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Survey and related files for LITHOPROBE seismic lines

This file allows access to all survey files of Lithoprobe Seismic transects. A transect consists of a series of seismic lines belonging to one particular study area. The term related files refers to abservers' notes, CDP locations (often only corner points of a bin line) and other data which are not usually available in electronic form.

Survey file formats

Most survey files are in SEGP1 format, the ASCII version of (ebcdic) SEGP files which contain station numbers, latitudes and longitudes plus eastings (westings), northings and elevations in UTM (Universal Transverse Mercator) coordinates. A description of the various SEGP formats may be downloaded from the Society of Exploration Geophysicists (SEG). The SEGP1 files downloadable here vary from the standard in that they have carriage returns instead of being padded to 80 characters per line, and they contain tabs with tab stops expected to be after every 8th position.

Some files (ECSOOT transect, see below) are in the UKOOA format, a description of which is also available from the SEG or the UK Offshore Operators Association.

CDP bin locations, if available, are always available in UTM coordinates only. CDP bin coordinates were made available by the contractors in only in a few instances. Hence, most links to CDP coordinates refer to files in the Seismic Atlas. CDP bin coordinates for the SNORCLE and Western Superior transects are in INSIGHT format; their top looks something like: 

     25.0000    2000.00
   51  T
     7013081.0000000    447843.12500000
     7009890.5625000    445521.87500000
     7004522.3750000    439460.43750000
     ...
The first two numbers are the bin height and bin width in meters, respectively. The second line indicates that 51 pairs of northings and eastings will follow. Note that not every bin is given, only the corner points of the slalom line on which they stand perpendicularly.

Other files listed here

In some instances other types of information are available, but the file formats may vary even within a transect. For some lines files are available containing observer's logs, tape logs, first breaks, mutes, or stacking velocities.

There is one instance (Central Alberta Transect line 10) where the electronic observer notes are not complete because the original diskette was never readable. Of the SALT survey only line 31 has electronic observer notes, other surveys have generally no electronic observer notes.

Disappearing lines

Some lines do not seem to have all entries, but that does no indicate information is missing. For instance, line 84-03 of the Vancouver Island transect follows a side valley long enough to warrant a stack almost perpendicular to the stack of line 3 proper. Hence there is, apparently, no geometry for line VI 84-03B. Similarly, the so-called expanding spread experiment, line 7E of the CAT transect in the Alberta Basement, follows line 7, hence there is no separate SEGP1 file.

Related information

Tables of line lengths are bundled together with tables of seismic data acquisition parameters. Those files provide an overview over all lines; station by station information, if it exists in electronic form, may be found there.

File compression

To avoid having a lot of versions of the same thing around, all files containing one type of information for one line at the time are concatenated. The only compressed files are files in gzip format containing information for all lines belonging to a transect (or at least all lines acquired in the same year). Data for individual lines will have to be extracted with an editor after expansion. These files are specially marked as compressed; they will be moved via ftp when clicked on.
A few rather large individual files are also available in compressed form.

Lists of available files

All transet headers start with the transect's common abbreviation. The abbreviations are also used in other listings of Lithoprobe data.
The following list of transects allows moving quickly to the data of the area of interest.
Blue Ball AG: Abitibi Grenville
Blue Ball ABT: Alberta Basement Transect
Blue Ball ABT: Alberta Basement Transect
Blue Ball ECSOOT: Eastern Canadian Shield Onshore/Offshore Transect
Blue Ball GLIMPCE: Great Lakes International Multidisciplinary Program on Crustal Evolution
Blue Ball KSZ: Kapuskasing Structural Zone transect
Blue Ball LE: Lithoprobe East
Blue Ball Refraction lines
Blue Ball SNORCLE: Slave Lake Northern Cordillera Lithosphere Experiment
Blue Ball SBC/SC: Southern British Columbia / Southern (Canadian) Cordillera
Blue Ball THOT: Trans-Hudson Orogen Transect
Blue Ball VI: Vancouver Island and Queen Charlotte Sound
Blue Ball WS: Western Superior

AG: Abitibi Grenville Transect

 The data were acquired in 1991 (lines 15 to 42) and 1993 (lines 43 to 93). Short prefixes to line numbers in the names of the survey (SEGP1) files indicate the general area in which the line lies. The meanings are: ban: Bancroft; l: Larder Lake; n: Noranda; parr: Parry Sound; and seg: Sudbury. Lines with dashes are high resolution lines unless a part of the suffix indicates otherwise (u: undershoot, etc.). A processing report from June 1994 gives the following additional information: Line 48 is in the Abtibi-Opatica area, 55 is north of Baie, and 54-55 are in the Mont Laurier area.
Data type Lines
survey notes (SEGP1) n15 (136 k), n16 (40 k), n16a (56 k), n17 (24 k), n18 (33 k), l21 (86 k), l21-1 (58 k), l23 (46 k), l24 (23 k), l25 (49 k), l27 (52 k), l28 (144 k), l29 (44 k), l29-1 (17 k), l29-2 (21 k), l29-3r (28 k), parr30 (48 k), parr31 (47 k), ban32 (120 k), ban33 (61 k), seg40 (17 k), seg40-1 (10 k), seg40-2 (12 k), seg40-3Ds (1 k), seg40-41 (15 k), seg41 (55 k), seg41-1 (27 k), seg41-1a (9 k), seg42 (22 k), l43 (55 k), l44 (24 k), l48 (296 k), l52 (248 k), l53 (176 k), l54 (58 k), l55 (288 k), l93a (23 k), l93sp (4 k), l93st (6 k), all compressed (792 k)
1991 CDPs 15, 16, 16A, 17, 18, 21, 21X, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 40, 41, 42
1991 observer notes 15 (44 k), 16 (17 k), 16A (20 k), 17R (10 k), 18 (12 k), 21-1 (29 k), 21 (28 k), 23 (16 k), 24 (9 k), 25 (18 k), 27 (18 k), 28 (42 k), 29-1 (10 k), 29-2HR (12 k), 29-3HR (14 k), 29 (15 k), 30 (18 k), 31 (17 k), 32 (34 k), 33 (23 k), 40-1 (16 k), 40-3D (7 k), 40-41U (6 k), 40 (8 k), 41-1 (50 k), 41R (25 k), 42 (13 k), all compressed (792 k)
GMG statics 43, 44, 48, 52, 53, 54, 55, 93A, 93D, all compressed
DMO velocities 43, 55, 93A
stacking velocities 43, 44, 48, 52, 53, 54, 55, 93A, 93d14, 93d30
migration velocities 43, 44, 55, 93A, 93d14, 93d30
all velocities compressed file
Other available data:
Blue Ball INSIGHT style observer and survey files plus corner points of a slalom (CDP bin) line for line 41 (160 k).
Blue Ball 1991 CDP coordinates (288 k).
Blue Ball 1991 first break picks (1240 k) in an unknown ASCII format.
Blue Ball Sudbury area survey information (21 k) without latitudes or longitudes (UTM coordinates only).
Blue Ball 1991 Sudbury high resolution line 1 or I ("INCO line"). README file, INSIGHT style survey file, INSIGHT style observer notes, bin line corner points, and INSIGHT style refraction statics determined by Jianjun Wu, GSC (Geological Survey of Canada).

ABT: Alberta Basement Transect

 The Alberta Basement Transect transect consists of four parts:
CAT: the Central Alberta Transect of 1992,
PRAISE: the Peace River Arch Industry Seismic Experiment of 1994,
SALT: the Southern Alberta Lithosphere Transect of 1995, and
VAuLT: the Vibroseis Augmented Listen Time experiment acquired right after the SALT experiment in 1995.
Lines 32E and 34E (also known as 32B and 34B) contain extended listen time data, lines 32C and 34C are 3-component lines.

Special lines: The CAT transect contains line 7E which is also known as the expanding spread experiment. 3-D and 2S3R refer to the same broad-side shoot involving parts of two perpendicular lines.

Data type Lines
CAT Surveys (SEGP1) 1, 2, 2A, 3, 4, 5, 6, 7, 8, 9, 10 (incomplete), 1-10 compressed
PRAISE Surveys (SEGP1) 11, 11B, 12, 12B, 12C, 12D, 12F, 12X, 13, 14, 14B, 14C, 15, 16, 17, 18, 19, 19B, 20, 20B, 11-20B compressed
SALT, VAuLT Surveys (SEGP1) 21, 22, 23, 24, 25, 29, 30, 31, 32, 32C, 32E, 34C, 34E, 21-32 compressed
CAT CDP coordinates 1, 2, 2A, 3, 4, 5, 6, 7, 7E, 8, 9, 10, 1-10 compressed
PRAISE CDPs: structure stacks README, 11A, 11B, 12-12B, 12C-12D, 12X, 12F, 13, 14-14B, 14C, 15, 16-17-18, 19, 20, 20B,
PRAISE CDP: DMO stacks 11A, 11B, 112-12B, 12C-12D, 12X, 12F, 13, 14-14B, 14C, 15, 16-17-18, 19, 20, 20B,
PRAISE CDP: migrated stacks 11A, 11B, 12merged, 13, 14-14B, 14C, 15, 16-17-18, 19, 20, 20B,
PRAISE CDPs: all stacks 11-20B compressed (UTM coordinates only)
SALT CDP coordinates README, 21, 22, 23, 24, 25, 29, 30, 31, 32, 21-32 compressed
CAT first breaks 1, 2, 2A, 3, 4, 5, 6, 7, 8, 9, 10, 1-10 compressed
PRAISE GMG refraction models 11A, 11B, 12_12B, 12C_12D, 12F, 12X, 13, 14_14B, 14C, 15, 16_17_18, 19, 20, 20B, 11-20B compressed
CAT DISCO geometry files 3D-100m, 3D-250m, 1, 2, 2a, 3, 4, 5, 6, 7, 7E, 8, 9, 10, 1-10 compressed
CAT observer's logs 1, 2, S2R3, 3, 4, 5, 6, 7, 7E, 8, 9, 10, 1-10 compressed
CAT stacking velocities README, 3D dx=100m, 3D dx=250m, 1, 2, 2A, 3, 4, 5, 6, 7, 7E, 8, 9, 10, 1-10 compressed (includes high velocities)
CAT high stacking velocities 1, 2, 2A, 3, 4, 5, 6, 7, 8, 9, 10, 1-10 compressed (includes normal velocities)
CAT observer notes (processor's) 1, 2, S3R2, 3, 4, 5, 6, 7, 7E, 8, 9, 10, 1-10 compressed
PRAISE observer's notes 11A, 11, 11B, 12_12B, 12C_12D, 12F, 12X, 13, 14_14B, 14C, 15, 16_17_18, 19, 20, 20B, 11A-20B compressed
PRAISE migration velocities README, 11A, 11B, 12, 13, 14-14B, 14C, 15, 16-17-18, 19, 20, 20B, 11A-20B compressed
PRAISE mute files README, 11B, 12-12B, 12C-12D, 12F, 12X, 13, 14-14B, 14C, 15, 16-17-18, 19, 20, 20B, 11A-20B compressed
PRAISE velocities README, 11A, 11B, 12-12B, 12C-12D, 12F, 12X, 13, 14-14B, 14C, 15, 16-17-18, 19, 20, 20B, 11A-20B compressed
SALT observer's notes 31, 31 compressed
SALT velocities 21, 22, 23, 24, 25, 29, 30, 31, 32, 21-32 compressed
VAuLT observer notes 32C, 32E (messy), 32E, 34C, 34E, 32-34 compressed
VAuLT velocities 32, 34, 32-34 compressed
At this point a few footnotes are in order:
Blue Ball Regarding the Green Mountain Geophysical refraction models: There are no first breaks in these files.
Blue Ball (Too) high velocities were used in order to bring out the dipping crustal fabric without having to resort to DMO or prestack migration.
Blue Ball Migration velocities are 90 percent of the smoothed stacking velocities.

ECSOOT: Eastern Canadian Shield Onshore/Offshore Transect

 Lines 1 to 5 are marine lines along the Labrador coast, lines 6 and 7 stretch approximately east-west across part of the north end of Ungava Bay.
Data type Lines
Labrador Sea UKOOA files 1A, 1A-1, 1A-L1, 1A-L2, 1C, 1C-L1, 1C-L1A, 1C-L2, 1C-L3, 2, 2-L1, 2-L2, 2-L2A, 3, 3-L1, 3-L2
Ungava Bay UKOOA files 5, 6A, 6A-L1, 6A-L1A, 6B-L1, 6B-L1B, 6B-L1D, 7, 7A
All ECSOOT UKOOA files all lines compressed
CDP coordinates N, S

GLIMPCE: Great Lakes International Multidisciplinary Program on Crustal Evolution

 GLIMPCE was jointly conducted by the GSC (Geological Survey of Canada) and the USGS (United States Geological Survey).
Data type Lines
CDP coordinates Lake Superior: A, C, F, G, Lake Michigan: H, Lake Huron: I, J

KSZ: Kapuskasing Structural Zone transect

 The shot and receiver spacing is not the same for all lines. High resolution lines are marked as HR lines. The standard version is sometimes refered to as the regional line. 23U refers to an undershoot based on lines 2 and 3. It is not clear why some lines got a suffix F during processing.
Note that HiRes line 14HR is really a "mixed resolution" line. From the chaining notes I got the following station intervals: 
101(BOL)-155:   100m
155-1545:       20m
1545-1723:      100m
1724-2023:      20m
2023-2095(EOL): 100m
To make things more confusing, every station was surveyed in the HR sections, but only every second station in what the chaining notes call the regular sections. The 100 m interval corresponds to a surveyed distance, the station spacing for the regular parts (and the "regional" lines in general) is thus 50 m.
Data type Lines
SEGP1 files 1, 2, 2-HR, 3, 4, 5, 6, 8, 9, 10, 12, 12A (HR), 14, 14-HR, all compressed (160 k)
CDP coordinates 1, 2-3-4, 5, 6, 8, 9, 10, 12, 14
Veritas' trace kills 1, 2, 3, 4, 5, 6, 8, 9, 2-HR, 10, 12, 12F, 14, 14F, 14-HR, 23U, 1, 2, 2-HR, 3, 4, 5, 6, 8, 9, 10, 12, 12F, 14, 14F, 14-HR, 23U, all compressed (152 k)
first break picks 2F (304 k), 12F (1032 k), 14 (6 k), 14F (208 k), compressed: 2F (66 k), 12F (240 k), 14 (2 k), 14F (46 k)

LE: Lithoprobe East

 The Lithoprobe East transect consists of onshore lines 1 to 15, the Fogo Island lines, and the manine lines of the GSC's Frontier Geoscience Project (FGP). The FGP lines are grouped into files, there is only one file per year. The lists of individual lines are only for reference.
Data type Lines
Lithoprobe East surveys (SEGP1) README, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15A, 15C, 1-15 compressed
The Fogo Island Survey README, SEGP1, Corel draw file of all lines,
FGP surveys (SEGP1) 1984, 1985, 1986, 1987, 1988, 1989, 1990, all years compressed
FGP 1984 lines 84-1, 84-1A, 84-1B, 84-2-2E, 84-2-2H, 84-2-F, 84-2A, 84-2B, 84-2D, 84-3-1, 84-3-2A, 84-3-2B, 84-3-2C, 84-3-2D
FGP 1985 lines 85-1, 85-2, 85-2A, 85-2B, 85-2E, 85-03, 85-3A, 85-3B, 85-3C, 85-3D, 85-04, 85-4, 85-4A
FGP 1986 lines 86-1, 86-2B, 86-2C, 86-2D, 86-2E, 86-2F, 86-3, 86-3A, 86-3AA, 86-4, 86-5AA, 86-5B, 86-5BA, 86-5BB, 86-5BC
FGP 1987 lines 87-1A, 87-1C, 87-2B, 87-2C, 87-3B, 87-3D, 87-4, 87-4A, 87-4B, 87-5, 87-5A, 87-5B, 87-5C
FGP 1988 lines 88-1, 88-1A, 88-2, 88-2A, 88-3, 88-3A, 88-4
FGP 1989 lines 89-1, 89-1A, 89-1B, 89-1D, 89-1E, 89-1F, 89-1G, 89-2, 89-2A, 89-3, 89-3A, 89-4, 89-5
FGP 1990 lines90-1, 90-2, 90-3
CDP coordinates 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

Refraction lines

 Refraction data are available for some Lithoprobe transect areas. They are:
DEEPPROBE: A line running from the NWT to Colorado.
EXSOOT96: This experiment contains both onshore and offshore data.
SAREX: The Southern Alberta Refraction Experiment. The geometry is bundled with DEEPPROBE.
SCoRE: The Southern Cordillera Refraction Experiment.
SNORE: The Slave Northern Cordillera Refraction Experiment (Northern BC and Yukon).

Additional information is in some instances contained in the tape listings.

Data type Lines
Deepprobe, SAREX SAREX SEGP1, DEEPPROBE part 1, DEEPPROBE part 2, all compressed
ECSOOT '96 1, 2, 3, 4, 5E, 5N, 5W, 6, 7, 1-6 (latitudes/longitudes only), 2+3+5W+5E+6+7 (latitudes/longitudes only), compressed
SCoRE README, 5, 6, 7, 8, 9, 10, shot locations, compressed
SNORE 11, 21, 22, 31, all compressed

SNORCLE: Slave Lake Northern Cordillera Lithosphere Experiment

 Some of the files included here are so large that both ASCII and compressed versions are available. Some huge files such as vibrator performance lists are of no immediate use initially and are only available in compressed form. Large files' sizes are specified in kilobytes in parentheses.

Some coordinates (e.  g.  CDP bins) are only in UTMs. The UTM coordinates for corridor/line 1 are in extended zone 11, for lines 2A, 2B and 3 in extended zone 9.

Order of the lines in the "original" obs logs for lines 2A, 2B and 3:

TAPE#   NewFFID   OrigFFID   1stStn   LastStn
Corridor 1:
Blue Ball Notes on survey data processing: in plain text, and an MS Word version
Blue Ball SEGP1 survey data in uncompressed (896 k) and compressed format (328 k).
Blue Ball Original observer's notes in compressed format (216 k) and in uncompressed format (2992 k)
Blue Ball Original observer's notes with strings replaced to shorten the file (a list of replacements is included): compressed version (184 k) and uncompressed format (1120 k)
Blue Ball Processor's observer notes in uncompressed (432 k) and compressed (83 k) format
Blue Ball CDP centers in uncompressed (608 k) and compressed format, plus corner points of the bin line.
Blue Ball compressed daily reports (30 k)
Blue Ball compressed vibrator performance lists (3624 k)

Corridors 2 and 3
Since the FFIDs were cyclical (SEGD data store them in BCD with an upper limit of 9999), new FFIDs were given to the data now stored in SEGY format. The old FFIDs have been stored in a separate header word. The following tables correlate the 2 sets of FFIDs and give IBM 3590 reel numbers besides shot stations and receiver station ranges.
Blue Ball Line 2A (408 k)
Blue Ball Line 2B (368 k)
Blue Ball Line 3 (408 k)
There are no original observers's notes available for lines 2 and 3: They were interspersed with various other kinds of information and keep changing their format. Extracting this information in a "pure" form was deemed too time consuming.

Corridor 2
Line 2 was acquired in two parts as lines 2A and 2B. The two lines run at approximately right angles. They crossed each other near Watson Lake, Yukon. Original observer's notes are only made available in a compiled form; the true originals are too repetitive and mixed with Vibrator analyses and other info.

Line 2A
Blue Ball Original obs log (296 k)
Blue Ball Processor's observer notes (344 k)
Blue Ball Shot survey file (672 k, SEGP1), skids (SEGP1), processor's survey file (312 k) and processor's CDP bin line

Line 2B
Blue Ball Processor's obs log (272 k), Processor's observer notes (312 k)
Blue Ball SEGP1 survey file (520 k, SEGP1), processor's survey file (272 k) and processor's CDP bin line

Corridor 3
This line follows the Canol road from Canol (Yukon/NWT border) to Whitehorse ...
Blue Ball Processor's obslog (269 k), processor's tape log (1576 k)
Blue Ball SEGP1 survey file (656 k), processor's survey file (296 k), processor's CDP bin line, skids in SEGP1 format (47 k)

Blue Ball Local floppy index for corridors 2 and 3

SBC/SC: Southern British Columbia / Southern (Candian) Cordillera

Blue Ball SEGP1, obs for the 3D line (136 k)
Blue Ball Line 11 (90 k) and 11 compressed observer notes from Anson Eng's reprocessing.

Data type Lines
1985 processor's geometry 1A, 1B, 2, 3, 4, 5, 1-5 compressed (35 k),
survey files (1985, 1988) 85-01A, 85-01B, 85-02, 85-03, 85-04, 85-05, 88-06, 88-06A, 88-07, 88-08, 88-09, 88-09A, 88-10, 88-10A, 88-11, 88-11A, 88-12, 88-13, 88-13A, 88-14, 88-15, 88-15A, 88-16, 88-16A, 88-17, 88-18, 88-18A, 88-19, 88-19A, 1-19 SEGP1 compressed (368 k)
CDP coordinates 1A, 1B, 2, 3, 4, 5, 6, 7, 8, 9, 9R10S, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19

Lines in Southern B.C.  obtained from Duncan Energy. Lines with a suffix P are portable lines: Drills were flown in with a helicopter.
The file sizes vary between 20 and 272 kilobytes; most are below 100 k.

Data type Lines
Duncan SEGP1 1-JP , 2.04 , 2.05 , 2.05 , 2.06P , 2.07 , 5.35 , 5.35P , 6.1 , 9.0 , 10.0 , 11.0 , 11.0P , 12.0 , 12.0P , 13.0P , 14.0P , 14.1 , 14.2P , 15.0 , 15.1 , 16.0 , 16.1 , 17.0 , all compressed (568 k)

THOT: Trans-Hudson Orogen Transect

 THOT data were acquired in 1991 and 1994. This set of comments refers to the 1991 data.
The SEGP1 geometry files off diskettes were less complete than those off tape: the diskettes contain only every second station. However, the high resolution lines are not on the tape.
A note about the high resolution lines (1A, 1B): Only every 5th station is given, and there are more stations in the case of 1AHR.
GPS information has been added by hand from hardcopy for lines 1A, 1A HR, 1B, 1B HR. The GPS info is on printouts containing fewer stations than the tape (LF5487). There is often some ambiguity as to what station a GPS position refers to.
To get an optimal, complete set, the following files are needed: All files off tape, and the normal and high resolution lines off the diskettes. The two sets are listed separately below.
Data type Lines (1991)
SEGP1 files off tape 1A (14 k), 1B (34 k), 2 (112 k), 3 (216 k), 4 (36 k), 5 (82 k), 7A (58 k), 7B (47 k), 7C (18 k), 9 (448 k), 10 (152 k), all compressed (408 k)
SEGP1 files off diskettes 1A (8 k), 1AHR (9 k), 1B (18 k), 1BHR (7 k), 2 (55 k), 3 (120 k), 4 (20 k), 5 (43 k), 7A (58 k), 7B (26 k), 7C (10 k), 9 (448 k), 10 (152 k), all compressed (328 k)
CDP coordinates 1A, 1B, 2, 3, 4, 5, 7A, 7B, 7C, 9, 9A, 9B, 10,

Comments on the 1994 data:
The first breaks are in (.LCT) files which are sorted in shotpoint order. For each shotpoint, first break times are ordered by trace from trace 1 to trace 480. Values of -1 indicate traces which were not picked.
Front end mute means a mute designed to remove first breaks and refractions AFTER NMO. S-2-D was muted only according to % stretch.
Migration velocities were 90 % of the stacking velocities.

Data type Lines (1994)
SEGP1 files S-1-A (296 k), S-2-A (248 k), S-2-B (608 k), S-2-C (224 k), S-2-D (368 k), S-3-A (408 k), S-3-B (440 k), all compressed (792 k)
observers notes S-1-A (82 k), S-2-A (71 k), S-2-B (192 k), S-2-C (64 k), S-2-D (200 k), S-3-A (136 k), S-3-B (136 k), all compressed (224 k)
mute files S-1-A, S-2-A, S-2-B, S-2-C, S-2-D, S-3-A, S-3-B
stacking velocities S-1-A, S-2-A, S-2-B, S-2-C, S-2-D, S-3-A, S-3-B
compressed first breaks S-1-A (240 k), S-2-A (288 k), S-2-B (440 k), S-2-C (320 k), S-2-D (352 k), S-3-A (248 k), S-3-B (216 k)
compressed GMG statics files S-1-A (208 k), S-2-A (176 k), S-2-B (424 k), S-2-C ( 74 k), S-3-A ( 94 k), S-3-B
CDP coordinates S-1-A, S-2-A, S-2-B, S-2-C, S-2-D, S-3-A, S-3-B,

VI: Vancouver Island and Queen Charlotte Sound

 Most lines are marine lines. All lines have SEGP1 files. SEGP file headers were taken over from the 1988 files. The assignment of northing and easting may hence be wrong. All lines are from on/offshore Vancouver Island except for the 1988 transect which was shot in the Queen Charlotte Sound. The Queen Charlotte Sound lines are also the longest. Several take 200 to 350 kilobytes, line 1F takes 488 k.

Some information is missing as detailed in the list of missing information.

The SEGP1-like data for the 1988 Queen Charlotte Sound lines were received in January 2001 and have many gaps. They are here because they contain lines for which no SEGP1 data exist. Check out the README file that comes with them.

The 1984 onshore lines were part of the Lithoprobe project, 1985, 1988 and 1989 lines are part of the GSC's Frontier Geoscience project.

Data type Lines
1984 onshore VI 84-01, 84-02, 84-03, 84-04, all compressed
CDP coordinates 84-01, 84-02, 84-03, 84-04
1985 offshore VI 85_01, 85_02, 85_03, 85_04, 85_05, 85_06, 85_07, 85_09, all compressed
1988 Queen Charlotte Sound 88-01C, 88-01F (488 k), 88-02A, 88-02B, 88-02C, 88-02E, 88-03, 88-04A, 88-05, 88-06A, 88-07, 88-09, all compressed (720 k)
1988 QC, SEGP1 like README, 88-01, 88-01a, 88-01b, 88-01c, 88-01d, 88-01f, 88-02, 88-02 (same + unknown info), 88-02a, 88-02b, 88-02c, 88-02d, 88-02e, 88-05, 88-06, 88-6a, 88-07, 88-09, all compressed
1989 offshore VI 89-01 (78 k), 89-02 (61 k), 89-02A (27 k), 89-03 (5 k), 89-03A (72 k), 89-04 (84 k), 89-05 (24 k), 89-06 (168 k), 89-07 (88 k), 89-08 (76 k), 89-09A (54 k), 89-09B (128 k), 89-10 (25 k), 89-11 (25 k), 89-12 (37 k), 89-13 (66 k), 89-14 (37 k), 89-15 (160 k), 89-16 (4 k), 89-17 (4 k), all compressed (328 k)

VI: Vancouver Island and Queen Charlotte Sound surveys outside of the Frontier Geoscince and Lithoprobe series

Data type Lines
Deformation Front pgc87004 (632 k), pgc87004 text
Sonobuoy Survey pgc87010 (920 k), pgc87010 txt
1994 Seamount survey from Kristin Rohr pgc94004 (9088 k)
87 + 94 surveys, zip version Zip file (2256 k)
The geometry files for the 1998 SHIPS (Seismic Hazards Investigations in Puget Sound, including Juan de Fuca Strait and Georgia Strait) survey are on the data tapes as ASCII files.

WS: Western Superior

 Survey procedures in both plain ASCII text format and in MS Word format are available.
Data type Lines
Daily reports 1, 2A, 2C,
SU files == ??? 1 (232 k), 2A, 2C,
Vibrator performance tests 1A (1776 k), 1D (664 k), 1E-N (160 k), 1E-S (312 k), 2A (696 k), 2C (200 k), (all files compressed)
Observer notes 1ABC (960 k), 1D (400 k), 1E-N (60 k), 1E-S (120 k), 1F (35 k), 2A (292 k), 2B (368 k), 2C (128 k), 3A (77 k)
Observer notes, compressed 1ABC (128 k), 1D (48 k), 1E-N (8 k), 1E-S (14 k), 1F (9 k), 2A (47 k), 2B (52 k), 2C (14 k), 3A (25 k)
SEGP1 files 1A (600 k), 1D (264 k), 1E (120 k), 1F (64 k), 2A (248 k), 2B (144 k), 2C (61 k), 3A (71 k)
SEGP1 files, compressed 1A compressed (232 k), 1D compressed (87 k), 1E compressed (42 k), 2A compressed (90 k), 2C compressed (22 k),
CDP bin lines 1F, 2B, 3A
There is also a small set of disconnected observer data cover sheets and a few other details available in a collection of marooned files.


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