Figure 4. Examples of the thermal
demagnetization of Vendian rock samples. Given from left to right
are the curves depicting changes in the value of natural remanent
magnetization in the course of thermal demagnetization; the
stereoprojection of its directions (in the geographical
coordinates); the Ziyderveld diagram (in the same coordinates);
the empty circles show the projections of the vectors onto the
upper hemisphere (the vector projection in the XOZ plane for the
Ziyderveld diagrams), the solid circles denote the projections of
the vectors onto the lower hemisphere (in the XOY plane for the
Ziyderveld diagrams); the numbers near the dots denote the heating
temperatures; the letter indices shown in the straight segments of
the Ziyderveld diagrams (in accordance with the indices given in
Tables 1 and 2) indicate the disintegrating components.
Clich here to go back