NORMIN.DB Help & Definitions
NORMIN Definitions
What is NORMIN?
NORMIN.DB is a database of mineral showings, and a database of
references to geology and mineral exploration in the Northwest Territories and
Nunavut. NORMIN stores location and geological information about showings, as
well as information on the content of references. It allows each showing to be
linked to as many references as apply to it; and each reference to be linked to
whichever showings it covers.
The CS Lord Northern Geoscience Centre is a centre for government
geoscience in the NWT which is jointly operated by the NWT Geology Division of
the federal Department of Indian Affairs and Northern Development (DIAND) and
the Minerals Oil & Gas Division of the Government of the Northwest
Territories. The Geoscience Centre maintains and upgrades the NORMIN.DB
database. Data input is an ongoing job, as new reports are released and the
existing backlog is researched. Staff record data which is already in public
records, and although every effort is made to be accurate, we cannot guarantee
the accuracy of either the source data or the data as it is recorded in
NORMIN.DB. Staff do not calculate weighted averages or reserves, nor do they
guarantee that any reported calculated information such as reserves is correct
or is based on data of sufficient quantity and quality. If a reported reserve
calculation or category is obviously not based on sufficient data, a subjective
judgment may be made to present it in a more appropriate way.
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What is a Showing?
A mineral showing is an indication of a potentially economic
concentration of a mineral commodity, as defined by the reported existence of
at least one sample of whatever material would constitute the ore if the
deposit were minable (usually bedrock), in which a commodity has been detected
in anomalous amounts. Anomalous amounts are those equal to or above a
minimum value assigned semi-quantitatively to each
commodity. Minimum values for the purposes of NORMIN do not vary with area
although actual background values do.
If a showing is defined for one commodity, another commodity may be
listed as anomalous if it has been detected in an amount above or equal to a
second assigned value, its 'As a By-Product' minimum.
The number of showings in NORMIN for any area is dependent on what has
been discovered and described in the literature, and whether that literature
has been researched by NORMIN staff. Please keep this in mind when interpreting
your search results.
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What is a Reference?
A reference is a publicly available source of information on
the geology of, or mineral exploration in, any part of the NWT or Nunavut. Most
of the references in the database are 'assessment reports' written by
exploration companies, but there are others, such as government maps,
scientific journals, company annual reports, and press releases. The existence
of showings is revealed to data entry staff by research of
references.
Showings for Non-Geologists
The following information may assist in interpretation of
showings data by non-geologists:
- A mineral deposit may exist in an area.
- Indications of the possible existence of a mineral deposit may or
may not have been discovered and reported in publically available documents.
Such indications are commonly called "showings" if they derive from assays of
bedrock which yielded amounts of a mineral commodity above background amounts.
Other indications include such things as geophysical anomalies; these are not
called showings. (Some of these are recorded in NORMIN and are differentiated
from true showings by their assigned Rank.)
- Entry of mineral showings into the NORMIN database is ongoing, both
from a backlog of released or published references and from references being
released or published monthly. Therefore, reported showings may or may not have
been researched and incorporated into the NORMIN database. (For completeness of
the backlog research, see the coverage map on the website or
contact us directly.)
- Showings may or may not point to the existence of a mineral
deposit. Whether a deposit exists can be revealed by further work on the
showing. (For the amount of work done on a showing recorded in the NORMIN
database, refer to its Development Stage.)
- If a mineral deposit exists, it may or may not be economically
feasible to extract it. The feasibility of extraction depends not only on the
quality of the deposit, but also on many factors which change over time, for
example world commodity prices, mining technology, transportation
infrstructure, etc.
- For all available information on recorded mineral showings, users
are referred to DIAND NWT Geology Division's Archives and Library, and DIAND
Nunavut's Mineral Resources Section Archvies, which house the reference
material from which the data in NORMIN was taken.
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Downloads and Extracts
NORMIN references metadata and NORMIN showings data can be acquired by downloading them from the NORMIN website. More recent or specialized sets of data can be acquired by emailing ntgo@gov.nt.ca. All
downloads and extracts are structured ASCII files; meaning they can be viewed
or edited in any text editor, and because they are structured can be imported
easily into spreadsheets and database tables. If you alter one of these files
in a word processing program (such as Word or Wordperfect), be sure to choose
the 'Save as Text' option or equivalent, with no formatting.
A txt file is a tab-delimited ASCII file structured as follows:
each field of information is separated from the next by a tab; and each record
is separated from the next by a new line. Each record represents one showing or
one reference.
An extract or download of references data is a subset of the data
stored in the references part of the NORMIN database, and an extract or
download of showings data is a subset of the data stored in the mineral
showings part of the database. The meaning of each attribute, that is, each
column or field of data, is given in the Attribute
Definitions sections.
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Importing a NORMIN Data File
The following are instructions for opening a NORMIN data file formatted as txt in some spreadsheet and database programs commonly used on Windows computers.
Spreadsheets
Excel: To open a txt file choose Data Get External Data Import Text File from within Excel.
![](/web/20061209025409im_/http://www.nwtgeoscience.ca/normin/graphics/import.jpg)
In the text import wizard:
step 1: |
Original data type Choose delimted |
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click "Next" |
step 2: |
Set the delimeter Choose tab; |
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Set the text qualifier Choose none |
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click "Next" |
step 3: |
Select the data Format Choose "text" for NTSx and all comments |
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click "Next" |
Some cells might appear filled with pound symbols. If you click on that cell, the content is displayed in the formula bar. By double clicking the cell, the content is displayed within the cell.
Quattro Pro v10:
step 1: |
After opening Quatro Pro, Choose File Open |
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Select "ASCII Text (*.txt)" for file type |
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Select the proper *.txt document |
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click "Open" |
step 2: |
Choose "Delimited Auto" from the Parse Settings dropdown menu |
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click "Settings" to view the Parse Settings dialog |
step 3: |
In Parse Settings, enure that "Delimited" is selected as Data type |
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To separate text, check off "tab" for end of cell and "return" for end of row |
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click "OK" |
step 4: |
click "OK" in the Open File Dialog |
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Databases
Access: Open Access, and either open an existing database or create a new one. Select the proper .txt file.
In the Link Text Wizard,
step 1: |
choose Delimited as the format |
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click "Next" |
step 2: |
choose Tab as the delimiter that separates your fields |
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select the "First row contains field names" check box |
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choose "none" for Text Qualifier |
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click "Next" |
step 3: |
make sure that NTS and comment fields are of type text |
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click "Next" |
step 4: |
Choose a name for the linked table |
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click "Finish" and the table will be created |
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Showings Attributes
SHOWING_ID
Each showing in the
NORMIN database has a unique number that is based on the NTS
(National Topographic System) sheet and quadrant on which it is located,
followed by a numeric identifier i.e. 085JSE0012 is on NTS map sheet 085J
in the SE quadrant, and has an identifier of 0012.
LATITUDE, LONGITUDE
Locations of
showings are always given as latitude and longitude in decimal degrees.
Coordinates based on the WGS1984 geodetic datum are used where
possible. The location of a Showing is sometimes obvious, but where
multiple zones make up a Showing, the location of the "best" zone is used as
the Showing location. This is sometimes a subjective decision. Location
accuracies are stored in the main database and are included in the 'Download
Table' option on the NORMIN website.
NAME
This is the name by which
the showing is most commonly known. Showings which were not named during
exploration are given a name by NORMIN staff, based on a sample number or
nearby formally or informally named topographic feature. For showings that have
more than one name (eg. it was given different names over the years)
usually the most recent name is used; the older names are listed as
aliases in the main database but not in this extract.
NTS1, NTS2, NTS3, NTS4 NTS1 is
the National Topographic System 1:50,000 series map sheet in which the showing
lies. Showings at the boundary between sheets may have up to 4 NTS entries.
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DEV_STAGE
The Development Stage
refers to the current degree of development of a Showing, ranging from initial
discovery to a mine. These stages are:
Reconnaissance: preliminary examination of an area has
revealed a site of interest.
Local Examination: sampling and ground investigations such as
grid-based surveys have been carried out to further knowledge of the site.
These may include trenching but not drilling.
Drilled: the showing has been tested by at least one drill
hole, not including Winkie/packsack holes or holes less than 3 m deep.
Generally surface work has been done as well.
Advanced Exploration: a deposit which is well understood in
three dimensions. Generally this means enough work has been done on which to
base resource calculations.
Producer: a deposit which is currently being mined and
producing a commodity.
Minor Producer: a deposit which is currently being mined and
producing a commodity, at rates of mining less than about 10,000 tonnes of ore
per day.
Past Producer Abandoned, Past Producer Care and Maintnc, Past
Producer Renewed Exploration: a deposit which at one or more times was
producing a commodity but is no longer. A Past Producer may be an abandoned
mine, it may be on care and maintenance, or there may be renewed exploration
for the same or different commodities in the vicinity. If a deposit cycles in
and out of production over the years, its Development Stage in the database
will be updated as its status changes.
Minor Past Producer Abandoned, Minor Past Producer Care and
Maintnc, Minor Past Producer Renewed Exploration: a past producer which
produced < 100,000 tonnes of ore.
If the "zones" of a mine (Producer) are spatially distinct from each
other at a scale of 1:50,000, they may be entered separately, especially if
production statistics for them are separate.
A value of 'xTo Be Assigned' in this field indicates that data
entry is incomplete.
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RANK
The status of the
showings as a whole (versus the status of individual commodities - see ARANK,
etc.). Almost all showings in the database will have the rank of
Showing. This means they are truly showings by NORMIN standards, in that a
commodity has been detected in amounts equal to or above our minimum cut-off,
in whatever material would constitute the ore if the deposit were minable
(usually this means bedrock).
Occasionally you will see a showing which was not defined by a bedrock
sample, but by a sample (or more than one sample) identified as float, frost
heave, or felsenmeer, or sometimes identified as 'boulder or frost heave' by
the source reference. These get a Rank of 'Showing, Frostheave/Boulder'.
Zones or bodies of massive sulphides, gossans, kimberlitic intrusions,
and various other lithologies are entered in the database if deemed
appropriate, and given a Rank of Prospective Lithology. Note this is only
for occurrences which have NOT yielded an anomalous commodity.
Sometimes a soil or other non-rock geochemical anomaly is entered, and
given a Rank of Anomaly.
Blank values or 'To Be Determined' here indicate that data entry is
incomplete.
Minimum Grade Requirements
(Cutoffs)
For a Showing to be included in NORMIN, at least one commodity must
have been detected in an amount above an assigned minimum, either in bedrock or
(in the case of placers, for example) in the material which would constitute
the ore if the deposit were minable. Click here to
see the minimums.
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COMM_ALL
Commodities_All: A string of abbreviated commodity names listed in order
of economic importance. Abbreviations for elements are their elemental symbols;
abbreviations for other commodities are the first four letters of their name
(eg. Diam for diamond). For example, a string of U-Th-Nb means that
uranium, thorium and niobium all are commodities of the showing in question,
and that uranium is (qualitatively) the most economically important (usually
this means the most abundant).
CHARAC1, CHARAC2, CHARAC3, CHARAC4,
CHARAC5
Characteristics of the showing which might aid in
classifying it. These characteristics may pertain to the host rock, style of
mineralization, presumed mineralization process, or structural controls, among
others. Some showings have only one value entered, some have more than one.
Their order does not imply relative importance.
For a shear-hosted gold deposit,the entry might be Structure:
Shear'; for a pegmatite lithium deposit, Rock: Pegmatite; and for a
sulphidic zone along a sheared contact between mafic and felsic volcanics,
Structure: Shear, Structure: Contact, and Ore:
Sulphide would be used. Other choices include 'Model: Mississppi Valley'
and 'Model: Olympic Dam'.
'Insufficient Data' is used if there was not enough information to
make a proper choice. Blank values here indicate that data entry is
incomplete.
LITHOLOGY1, LITHOLOGY2, LITHOLOGY3, LITHOLOGY4,
LITHOLOGY5
The rock types which host the showing, or host the
host, or are otherwise closely associated with the showing spatially or
genetically. Up to five different rock types may be listed. The order of these
does not reflect their relative importance.
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LITHO1_REL, LITHO2_REL, LITHO3_REL, LITHO4_REL,
LITHO5_REL
The lithology relationship field shows
the connection between rock type and mineralization, that is, whether or not
the rock type is mineralized.
ACOMMODITY, BCOMMODITY, CCOMMODITY, DCOMMODITY,
ECOMMODITY
These fields give the full names of up to five
commodities (A to E). If the showing has more than 5, only the 5 of
highest economic importance (see A_RANK etc below) are listed. Metallic
commodities and gems are named specifically, for example 'Zinc,
Diamond, Indicolite. Non-metallic, non-gem
commodities are often named according to their purpose rather than their
composition, for example Aggregate, Carving Stone,
Flux; but not in all cases, for example Barium, Barium
Minerals, Phosphate, Potash.
ASTATUS, BSTATUS, CSTATUS, DSTATUS, ESTATUS
The economic status of commodities A to E. The possible
values are:
Anomalous |
anomalous or "anomalous, reserve status unknown"
|
Has Reserves |
has reserves, never produced |
Had Reserves (Status Unk) |
has/had reserves, current production/reserve status
unknown |
Produced, Has Reserves |
was produced, has reserves |
In Production |
in production |
Produced (Resrv Unk) |
was produced, current reserve status unknown |
Produced, Exhausted |
was produced, exhausted |
Observed |
observed ore mineral, not assayed |
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ARANK, BRANK, CRANK, DRANK, ERANK
This field gives the rank in economic importance of each
commodity, with 1 being the highest. Rank is a qualitative indication of
relative economic importance. These fields may be unnecessary for some users
since ACOMMODITY is always of Rank 1, B of Rank 2, etc.
ACOM_GROUP, BCOM_GROUP, etc
The
major group for each commodity; for example: Metal, Gem, Industrial...
ACOM_SUBGR, BCOM_SUBGR, etc
The
subgroup to which each commodity belongs; eg. if the group type is
metal, the subgroup may be base (as in base metal).
DEV_LABEL
Same as DEV_STAGE,
except all Past Producer and Minor Past Poducer variants have been re-labelled
simply 'Past Producer' or 'Minor Past Producer'. This is more useful for
symbolizing on a map.
A_GP_SUBGP
A concatenation
(joining) of the ACOM_GROUP and ACOM_SUBGR fields, again for convenience in
symbolizing on a map. This field will contain 'Metals Precious/Noble' when
ACOM_GROUP contains 'Metals' and ACOM_SUBGR contains 'Precious/Noble', and will
allow users to apply symbols based on the nature of a showing's main
commodity.
WEBLINK
The Internet address or
URL at which a detailed report for the showing in question will be dynamically
generated. The detailed report contains the above fields, plus others,
including detailed descriptions.
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References Attributes
Depending on which type of extract you received or downloaded, some or
all of the following fields of data may be included, under one of the given
names:
ID A unique
identifier for each reference.
REF_TYPE Each reference in the
database is assigned a Type. Examples of Types: Assessment Report, GSC Paper,
DIAND EGS Open File, M.Sc. Thesis, Personal Communication. The Department of
Indian Affairs and Northern Development (DIAND) requires mineral exploration
companies to submit reports detailing the work they did on mineral claims and
the results of that work, in order for the companies to retain their interest
in the claimed ground. These reports are known throughout the industry as
'assessment reports', and are labelled as such in the Archives where they are
stored by DIAND NWT Geology Division. In this file they are generally referred
to as 'exploration assessment reports' in order to avoid any confusion with
resource assessments or appraisals. They are also referred to as
'representation work reports' in the Canada Mining Regulations. The term
'Assessment Report' is used in the NORMIN database. Exploration assessment
reports remain confidential for a period of years, after which they are open to
the public. They are the primary source of mineral occurrence data in
NORMIN.
A list of reference types is available on the website. It
can be linked to from the Help page, Reference Query Options, Reference
Type.
REF_NUM / REF_ID
The
Reference Number is an alphanumeric identifier which is unique for each
reference of a given Type. The format of this Number is based on the reference
Type. For assessment reports, the Number is the government assigned file
number. Company annual reports are assigned a Number which starts with the year
and is followed by the first 8 letters of the company's name. The format used
for each Type of reference may be viewed on the NORMIN website at
www.inacnt.internorth.ca/normin/refty.htm.
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DATE / DATEFILPUB
The
date the reference was published or filed.
AUTHOR
The author(s)
of the report, paper, journal or other reference.
TITLE
The title of
the report or file. Some assessment reports and other unpublished references do
not have actual titles; titles for these may be assigned to reflect their
contents.
OWNER
The legal
owner of a mineral lease, claim, or permit or group of those (i.e. of a mineral
property), during the time in which the work described in a reference was
done.
OPERTR / OPERATOR
The
operator of the property during the time in which the work described in a
reference was done; that is, the company or person who funded the work. This
may be the owner, or a different company or person such as a joint venture
partner.
WORKFROM / WORK_FROM
The date the work described in the reference commenced.
WORK_TO
The date the
work described in the reference was finished.
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SPENT / PRICE
Assessed value of the work described in the reference (as per
the Canada Mining Regulations).
LATN
The
northernmost latitude of the area(s) in which the work described in the
reference was done. Together, LATN, LATS, LONGE, and LONGW define a rectangle
which encompassess the areas in which work was done. The entire area within the
rectangle was not necessarily worked; a reference may cover several smaller
areas within this larger one.
LATS
The
southernmost latitude of the area(s) in which the work described in the
reference was done. Together, LATN, LATS, LONGE, and LONGW define a rectangle
which encompassess the areas in which work was done. The entire area within the
rectangle was not necessarily worked; a reference may cover several smaller
areas within this larger one.
LATC
The approximate
central latitude of the area covered by the report.
LONGE
The
easternmost longitude of the area(s) in which the work described in the
reference was done. Together, LATN, LATS, LONGE, and LONGW define a rectangle
which encompassess the areas in which work was done. The entire area within the
rectangle was not necessarily worked; a reference may cover several smaller
areas within this larger one.
LONGW
The
westernmost longitude of the area(s) in which the work described in the
reference was done. Together, LATN, LATS, LONGE, and LONGW define a rectangle
which encompassess the areas in which work was done. The entire area within the
rectangle was not necessarily worked; a reference may cover several smaller
areas within this larger one.
LONGC
The
approximate central longitude of the area covered by the report.
PAGE
The page,
pages, volume or appendix of the reference; this field is used if only part of
the reference is relevant to geology or exploration of either Territory.
WEBLINK
The URL of a
detailed report on the reference (generated by the NORMIN Web Query).
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AREA
Names of lakes, rivers,
prominent topographic features, administrative districts, or regions which
identify the geographic area covered by the reference.
ACTIVITIES
A list of the
types of exploration or research described in the reference.
TARGET
The target(s) of
exploration, if any.
CLAIMNAME
The names and
numbers of mineral claims, leases and permits, for an assessment report.
RELEASED
The release date of
an assessment report.
ILLUSTRATN
A description of
illustrations besides maps.
REMARK1
A brief synopsis of
the contents of the reference, divided into four parts of 500 characters
each.
REMARK2,3,4
Parts 2, 3 and
4.
NTS1
A list of the 1:50,000
scale National Topographic System map sheet number for the area covered by the
work desribed in the reference. If the list consumes more than 500 characters,
it is continued in up to four additional fields.
NTS2,3,4,5
Continuations of
the NTS1 list.
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