Apple Newton Utilities User's Guide download pdf (Page 22)

TYPE & SUBTYPE

Structural features are stored as a mandatory

type

and a

subtype

(e.g., bedding that dips is type 1 subtype 1). We use this system

rather than traditional structural systems as it makes map making

easier. For example, S, is the second generation fabric but it may

be a cleavage, crenulation cleavage, mylonitic fabric and so on.

The Type and Subtype system allows the geologist to distinguish

the different fabric elements

(Pulldown Menu).

AZ -

INCL -

DEFNO -

DEFSU -

PRANK

Site search

Azimuth

is the direction of dip, between

and 359° oriented 90

to a strike. This is important as the plotting routines will rotate

(place) the symbols in an incorrect orientation if one uses strike.

Inclination

is the amount of dip between

and 90

. The value

provided will be placed along side the relevant symbol in the

GIS

plotting routines.

Optional field to store the

deformation number

or generation of a

structure (e.g., bedding would be 0 and the first cleavage would be

1). It is particularly useful when the generation of a foliation or

lineation is known (or inferred), for example F3 would have a 3 in

the

defno

field.

The

deformed surface number

is the generation of the surface that

is deformed by a subsequent generation of structure (it is used in

conjunction with

defno).

For example, a third generation fold of

an second generation surface (F3

) would be type 3, defno 3,

defsu 2.

A positive integer of up to

digits indicating the order of

importance in plotting the structure on a map. Where a number

structures have been measured at the one locality,

plot rank

determines which structures will be plotted first. On maps plotted

by computer, only one structure can generally be plotted at any one

point on a map.

The Site Search Form allows users to search for, delete or create new sites. To search for a

particular site enter the Site

in the

Search for

field then press . To edit a site

select the Site

and then press the

edit Site ID

button which

displayed on selection.

Deleting a site is done the same way except by pushing the

delete button.

Australian Geological Survey Organisation

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Apple Newton Utilities User's Guide Page 22

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