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The Correlator application facilitates stratigraphic correlation of cores from multiple holes at a drill site. Its features support for
- depth shifting of cores based on high-resolution core logging data, including images, to construct a core composite depth below sea floor (CCSF) depth scale; and
- splicing of selected core intervals to construct the most complete stratigraphic representation possible at a site.
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Software application | Task | Documentation |
Correlator | Stratigraphic correlation of cores from multiple holes at a drill site, by depth shifting cores using high-resolution core logging data and constructing a core composite depth below sea floor (CCSF) depth scale, and by splicing selected core intervals to construct the most complete stratigraphy possible at a site. | scors_correlator_ug_4.0_2022 |
Correlation Downloader | Download core logging data from the LIMS database, with options to filter the data as appropriate, and to append new core data to hole files. | scors_lims_ug_20190321.docx |
SCORS Uploader and Manager | Load affine tables and splice interval tables created by an external application (e.g., Correlator) to the LIMS database where the information can be reported and applied to all data in LIMS. | |
LORE Reports for Stratigraphic Correlation | Provide (A) lists of existing affine tables and splice interval tables, with links to uploaded user files; (B) detailed, LIMS-computed affine and splice interval tables; (C) CCSF (alternate) depths for any data set in the LIMS; and (D) data sets by selected splice. |
Version 4.0 beta was released in April on 31 March 2022. It can be downloaded at
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2. Correlator basic functions overview
2.1. Data Manager
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view
Correlator operates within a single window that can be expanded as much as available monitor space permits. The window can be toggled between the Data Manager view (Fig. 2.1-1) and the Display view (Fig 2.1-2next section). To navigate between these views, use the button in the lower left corner of either window (Figs. 2.1-3 and 2.1-4).
Figure 2.1-1. Data Manager view. Also shown is the floating tool bar, where the top button can be used to toggle to the Display view.
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- The Data Manager tab (Fig. X) lists the files imported into Correlator and provides the functions for adding and managing the data in Correlator.
- The Generic Data tab displays data from files being imported when such an import is triggered in the Data Manager tab (otherwise it’s an empty grid).
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2.
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2. Display view
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Correlator operates within a single window that has two major views: Data Manager view (previous section) and Display view (Fig 2.2-1). The views can be toggled with the button in the lower left corner of either window (Figs. 2.2-2).
Figure 2.2-1. Display view, with the Display Preferences tab open on the right.
Figure 2.2.-2. Button two switch to Data Manager view.
The Display view has three areas, two for data plotting and one for the functional controls, organized in four control tabs.
- The left plot area is for depth shifting, and the corresponding controls are in the Shift Cores tab.
- The right plot area is for the construction of splices, and the corresponding controls are in the Splice Cores tab. This plot area can be turned off at the top of the Display Preferences tab if more display space is preferred for depth shifting.
- The control area can be toggled among the following four tabs:
- Close: This tab acts like a button and closes the control panel. The control panel can be opened again by clicking any of the other four tabs.
- Shift Cores: This tab has controls for depth shifting, which are described in the Depth shift cores section.
- Splice Cores: This tab has controls for splicing, which are described in the Construct the splice section.
- Display Preferences: This tab has general data display controls, as shown in Fig. X.
- Data Filters: This tab offers data filtering options, including decimate, smooth and cull (Fig. X).
2.2.1. Shift cores tab
This tab has functions for shifting cores, which are explained in the Depth shift cores section.
2.2.2. Splice cores tab
This tab has functions for shifting cores, which are explained in the Depth shift cores section.
2.2.3. Display Preferences tab
This tab offers numerous display options that applying to core shifting and splicing. These options should be self-explanatory. Load some data, shift some cores, make some splices, and the simply explore the options be clicking around - nothing will affect the data.
Figure 2.2-3. Display preferences.
2.2.4. Data Filters tab
The Data Filters controls are largely self-explanatory but require some commentary (Fig. 2.2-3).
- Data filters are applied to the data from all cores for a specified data type. For a more specific filtering of known intervals with severe core disturbance, etc., you have the option to apply a file with those intervals specified in the Correlator Downloader application, at the time of data download.
- At this time, data culling can only be specified for top of cores (to remove data from “exotic” material washed down from higher up in the hole). A future version will include culling from core bottoms (“exotic” material “sucked in” when the piston core was removed) and culling from section ends (“edge effect”).
- Some odd behavior has been observed when deleting a cull filter under certain circumstances, and this has not yet been repaired (no user pressure). An easy workaround is to re-load the data.
Figure 2.2-4. Three data filtering options on the Data Filter tab: Decimate, Gaussian Smoothing, and Cull. Shown is a 9-point Gaussian filter applied to the magnetic susceptibility data whereby both original and smoothed (white trace overlay) are plotted. The filter can be edited or deleted.
2.3. Application menus
The application menus are rarely needed and presented here for completeness.
2.3.1. File menu
Figure 2.3-1. File menu.
2.3.2. Edit menu
Figure 2.3-2. Edit menu.
2.3.3. View menu
The View menu has a few fundamental display preferences not available in the Display Preferences tab of the Display view (Fig. 2.3.3-1.)
Figure 2.3-3. View menu.
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The Display view has three areas, two for data plotting and one for the functional controls, organized in four control tabs.
- The left plot area is for depth shifting, and the corresponding controls are in the Shift Cores tab.
- The right plot area is for the construction of splices, and the corresponding controls are in the Splice Cores tab. This plot area can be turned off at the top of the Display Preferences tab (shown in Fig. X) if more display space is preferred for depth shifting.
- The control area can be toggled among the following four tabs:
- Close: This tab acts like a button and closes the control panel. The control panel can be opened again by clicking any of the other four tabs.
- Shift Cores: This tab has controls for depth shifting, which are described in the Depth shift cores section.
- Splice Cores: This tab has controls for splicing, which are described in the Construct the splice section.
- Display Preferences: This tab has general data display controls, as shown in Fig. X.
- Data Filters: This tab offers data filtering options, including decimate, smooth and cull (Fig. X).
2.2. Shift cores
This tab has functions for shifting cores, which are explained in the Depth shift cores section.
2.3. Splice cores
This tab has functions for shifting cores, which are explained in the Depth shift cores section.
Data Filters
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3. Manage data in Correlator
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