Hierro-Cobre Cobre-Oro
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Corte con serie de<br />
diques ultramáficos<br />
WPT<br />
Sample<br />
Composition<br />
Additional description<br />
Orient.<br />
Width<br />
Iron oxides<br />
Other<br />
241<br />
L-740<br />
Peral. Na Fe<br />
trachy phonolite<br />
Very fine-grained, glassy, gray-reddish to dk pk-bn; no<br />
reaction to HCl. Conchoidal fracture and sharp edges.<br />
056°90°<br />
1 m<br />
w/ diss fine<br />
magnetite<br />
242<br />
L-741<br />
Meta. K Fe trachy<br />
phonolite<br />
Magnetic, dark gray to bk , subvolcanic. With extremely finegrained<br />
matrix, plagiolase porphyries, open vacuoles; does not<br />
react to HCl; chloritization. Nepheline blades 2-3mm wide,<br />
range to 2cm long.<br />
078°90°<br />
243<br />
Carbonatite<br />
Bk to dk bn with hematitic banding along foliation, coarse<br />
hematite clusters and gossanous texture.<br />
60°/78°<br />
S<br />
Very abun-dant<br />
FeOx<br />
244<br />
L-742<br />
Metal.Na Mg<br />
biotite granite<br />
Very fine-grained, medium gray, foliated, with slightly<br />
magnetic character.<br />
245<br />
L-743<br />
Carbonatite<br />
Brown, very magnetic, with internal flow banding.<br />
085/52°<br />
S<br />
1m<br />
abundant earthy<br />
goethite after<br />
sulfides<br />
246<br />
L-745<br />
Carbonatite<br />
Strongly magnetic, very fine-grained, medium gray; internal<br />
flow banding; intersects L-742. Alteration halo around dike;<br />
sample has 2 “quenched” margins.<br />
095/49°<br />
S<br />
4-5 cm<br />
none visible<br />
247<br />
L-746<br />
Carbonatite<br />
Weathering surfaces show clusters of Fe oxide-rich substance<br />
that does not weather as much. Surface is bn/yw with very<br />
irregular texture like lapiez corrosion in karstic environments.<br />
064/83°<br />
S<br />
Abundant bk.<br />
Braided magnetite<br />
bodies,<br />
contain sulfs<br />
Min.<br />
length<br />
=<br />
400m<br />
251<br />
Carbonatite<br />
With abundant iron oxide alteration and red-rock alteration in<br />
the host rocks.<br />
Subvert<br />
ical<br />
25-<br />
30cm<br />
252<br />
L-747<br />
Quartz vein<br />
With red Feox stains, thin red- and bk-filled joints<br />
050/90°<br />
10-<br />
15cm
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