Masinloc Mine

Question 1

Like some other high-alumina chromite deposits (Thayer,
1960), lies close to a mass of ______.

Answer 1

olivine-rich gabbro

Question 2

the ____ host rock has been injected into ____ (an
olivine-enstatite rock) as tongues from a main dunite
body.

Answer 2

dunite; saxonite

Question 3

The ore deposit consists of lenses of chromite parallel to
the ______ contact and within about 100 m of it.

Answer 3

saxonite-dunite

Question 4

According to Stoll (1958), Coto orebody is an oval, flat-lying lens about 600 m long and 300 m wide. It is estimated to have been as much as ____ m thick before erosion.

Answer 4

80 m

Question 5

The belt of chromite orebodies coincides with parts of a zone of intense ________ and ______ in the saxonite.

Answer 5

serpentinization and fracturing

Question 6

Sulit recognizes ground favorable for the occurrence of chromite ore by the following criteria:

Answer 6

1. Proximity to the saxonite-dunite contact;
2. Presence of dunite layers, tongues, and lenses;
3. Intense serpentinization;
4. Presence of dolerite dike swarms or intense fracturing of
   saxonite.