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The TSG Screens

Here you can find an overview of the major screens used within TSG™. Click any of the links to go to the description and
click the image to return to the top of this page.

Summary Log Spectrum Scatter Stack Tray


Summary Screen

Overview at a glance

The Summary screen is designed to give you an overview of your dataset and is by default the first screen you will see
when you open or create a new TSG dataset. It is particularly useful for gauging the degree and type of variability within
large datasets, and can now also summarise the broad mineral groups down-hole in spatially related data sets. This screen
consists of two sub-screens, the Overview Assemblage Histogram and the Spatial Assemblage Histogram. By default these are
presented in the upper and lower plots, respectively, but the user can change what is displayed in each plot using the Plot
Type control drop down list. To select one of the plots to make it the active plot, all you need to do is to click on
it.

The Overview Assemblage Histogram is driven by the automated spectral analysis program The Spectral Assistant (TSA) and
displays histogram bars relating to the number of minerals identified in the data set as well as the frequency of the
occurrence of those minerals. TSA is designed to give you an overview of the mineral species or classes likely to be
present in your dataset. This plot can be a useful indication of the assemblages or suites of minerals present (e.g.
phyllic, propyllitic, argillic, felsic, mafic, ultramafic, etc.), before launching into the detail analysis of a large
number of individual spectra.

The Spatial Assemblage Histogram, also displays the results of TSA, but allows the user to control the x-axis scalar
which can be any numerical scalar but makes more sense if it is a spatial scalar such as a Depth scalar or Index scalar. If
a “Depth (m)” scalar is present in the data set (which would normally be automatically created on import of a
HyLogging data set) then TSG will use this by default. If this scalar is not present, then the Index scalar is used by
default. The user can create a depth scalar at any time. For example, by importing the depth data for a set of hand
measured spectra and then use this information in this display.


Log Screen

I need to see numbers

The Log screen is one of TSG’s most powerful features because it allows other data sets associated with a suite of
spectra to be integrated, compared with and analysed alongside your spectral data. The TSG Core Log screen is designed to
display spectral data, linescan imagery, profilometer data, geochemical data, comment fields and any other types of
numerical and text field relevant to the data set in a format which most exploration geoscientists will probably find
familiar.

The concept is based on a drill hole log but is equally effective when dealing with surface traverse or geochemical
sample grid data. This display format also allows you to visualise large amounts of spectral data in a down hole/line
traverse format.

It’s possible to display up to 32 columns of data including over 500 spectra in colour slice format on one screen
(using a 1024 x 768 screen). Users can adjust the column widths, move their screen position, scale and change the colours
of the displays within them. Text, spectral image logs (colour slices), bar graphs, line graphs can all be displayed in the
Log Columns. Also, individual spectra can be interrogated and examined simply by selecting them from the log and viewing
them in one of the Floater windows or the Spectrum screen.

When analysing HyLogging data in TSG Core, users can scroll down the Linescan image data as if traversing down the core,
so that you can see the exact piece of core associated with the spectral and ancillary data.

Using the Log screen it is easy to display any number of combinations of geochemistry, geological and spectral data. The
variety of display formats is almost unlimited and allows you to explore all of your data fully. In addition, all of the
data displayed can be saved in the TSG file system or exported as graphics or CSV ASCII data for use in other programs via
the clipboard.

In TSG Core, users can also interactively create their own class scalars using the Class Edit… tool in the Log screen.
This is a powerful feature, which allows you to interactively select and assign spectra/core intervals to a given class
during your analysis of a data set (such as “junk” for wood blocks or empty intervals, or an interpretation, such
as “white mica”).


Spectrum Screen

Show me absorption’s

The Spectrum Screen is used to display and examine single spectra in detail. You can also use this screen to compare
(overlay) spectra from the system library, different parts of the current data set and from other TSG files (attached Aux
files). Because all of the main screens are linked, selecting a different part of the data set in the Log or Stack Screens
will immediately update the active spectrum in the Spectrum Screen.

Using the Logs status bar option on the pop up menu displays the information displayed in the Log Screen for the active
spectrum in the Spectrum screen. This information is updated as you select various sample spectra from the file list.

In TSG Pro, there is one reference library that can be accessed in the spectrum screen the SWIR library (S_SWIR_TSA63),
and TSG Core has two reference libraries, the SWIR library and and the VNIR library (S_VNIR_TSA63)). These are based on
averages of the training spectra in The Spectral Assistant (TSA) training set and are useful to overlay with your project
spectra when interpreting and analysing them. You can also attach and overlay spectra from another TSG file (such as a
custom library) for comparison.

The results of the TSA analysis are shown in the bottom right of the Spectrum screen as an indication of the possible
mineralogy of the spectrum, to assist in your interpretations.


Scatter Screen

Show me relationships

Alongside the Log screen, the Scatter Screen forms the heart of TSG’s data analysis capabilities. The Scatter Plot
screen allows the user to assign any scalar values to X or Y axes and a third scalar to the colour scale (Z) in up to 16
simultaneously displayed graphs. Graph windows can also display frequency histograms for any selected scalar.

As many TSG datasets are composed of a variety of data types including spectral data, geochemistry and coordinate data,
the Scatter Plot screen is designed to allow you to display and analyse all of these data types as an integrated data set.
In addition, each plot window in the Scatter screen is linked so that the selected data point/sample/spectrum in one screen
is highlighted in all the other screens currently on display.

By assigning coordinate data to X and Y axes the Scatter Plot screen can be used to display sample spatial distribution
in plan or section. This allows the spatial distribution of geochemistry and alteration mineralogy to be simultaneously
investigated. This functionality combined with the Floater window also allows the simultaneous analysis of hundreds or even
thousands of spectra while at the same time allowing you to keep track of individual sample spectral or mineralogical
characteristics. Similarly, using RL and Easting or Northing data for down hole samples can allow you to plot a section of
holes in the Scatter screen with their data points coloured by a given scalar in your TSG file.

There are a number of advanced analysis tools available in the Scatter Plot screen such as the lasso option, which
allows you to select a cluster of data points and view where these samples occur in all other displayed plots. Plots can
also be filtered using the Scope option, to display only those samples from a given class (such as a given lithology,
mineral assemblage or section).

In the Scatter Plot screen shown in the figure, four plot windows have beenset up. The top two plot windows are being
used to display coordinate data with the data points coloured to show various geochemical and spectral data. The plot
window at bottom left is being used to display a histogram while the window a bottom right isbeing used in scatter plot
mode to investigate correlations between certain geochemical and spectral parameters.


Stack Screen

Whats changing?

The Stack Screen is used to display numbers of ‘stacked’ spectra in either line or image format. It allows
detailed analysis of portions of the data set while still providing access to the Log Screen data (using the Logs status
bar option). In particular it is useful for identifying repeating patterns or blocks of similar spectra as well as
gradually changing trends through a dataset. Selecting a spectrum in the Stack Screen will update the Spectrum Screen while
zooming to a particular portion of the data set will also update the Log Screen view.

Stack plot print outs and graphics are labeled with the spectrum name, which is useful to allow the user to relate the
stack plot outputs back to the spectrum/sample.


Tray Screen

What does the core look like?

The Tray Screen is a TSG Core specific screen, which allows you to view enhanced core tray reconstructions for each core
tray scanned by the HyLogger. The Trays are faithful to the core trays horizontally, but each core segment has been been
offset vertically to allow the plotting of depth ticks and scalar plots under the core segments. The Trays are shown in
landscape orientation, with the start position at top left.

The Tray screen has a live cursor which is linked to all the other TSG screens, so when you point to a part of the core
the spectral and any other ancillary data for that sample will be displayed in the other TSG screens, as well as the
Floater windows.

The Tray screen has a Class Edit tool and a unique tool for interactive depth logging. It also has two sub-modules for
generating Tray pictures and Mosaic pictures, which may be used as standalone products or displayed in one of the TSG
Floaters.