572 H. A. BROUWER 
In Diagram II of the same figure the same considerations apply. 
The bending of a; will be much less than that in the figure, and the 
distinct traces of transverse fracture movements on the islands will 
disappear rapidly through erosion, although they may be percep- 
tible near the transverse coasts. 
In Diagram III of the figure more or less longitudinal fractures 
may develop, which in connection with the deformation of the 
I z ZZ Le 
on ———— a  , 
QQ 
a —— —— 
& re ea Senet A Be 
Fic. 5.—I, Displacement of the geanticlinal axis parallel to itself. II, Hl, and 
IV, Displacements in which the vertical or the horizontal projection, or both, have 
obtained a curved form. 
f= ai 
a, See? ee? 
: 4 a oe ee 
g 
Fic. 6.—Deformations of the horizontal and vertical projections of the geanticlinal 
axis neglecting any displacements parallel to themselves. 
sections perpendicular to the geanticlinal axis will be more or less 
important. ‘Transverse fractures may be observable especially at 
the straits between the different islands of a row. Diagram IV is 
a combination of Diagrams II and III. 
If in Diagram II, a: has one or more bending-points, which is 
equivalent to the development of transverse folds normal to the 
geanticlinal axis, then the place, rate, and duration of the trans- 
verse fracture movements near the surface may be strongly influ- 
enced by these folds. The same considerations are applicable to 
IITaz, and to [Va; or IVa, or to both of them. 
