The Tina molybdenum occurrence, shown on Map 69-1, is located near the headwaters of Boulder Creek, 13 kilometres south of New Hazelton. In 1982, the occurrence was held as part of the Schemo property by Pharaoh Exploration (see the Sultana occurrence (093M 061) for more information).
The area is underlain by porphyritic granodiorite of the Brian Boru stock. The stock has been dated at 72 million years (Geological Survey of Canada Open file 2322) and is part of the Late Cretaceous Bulkley Plutonic Suite.
An occurrence of pyrrhotite is reported to occur immediately south east of the molybdenum occurrence, no other information is available. The Tina showing is assumed to be porphyry-style disseminated molybdenite.
In 2010, an initial reconnaissance and prospecting program was carried out at Tina West, which is located over 1 kilometre to the southwest of the original Tina showing. Five representative samples were taken from the talus at Tina West. Four of the five samples were taken from a tuff varying in colour from light to dark grey containing disseminated pyrite. One of these samples also contained feldspar and hornblende laths. The fifth sample was of a dark dike with pyrite-bearing quartz veins. None of the samples contained anomalous values. Some rock sampling is indicated by plots on in the Tina showing area is shown on Sample Location maps in Assessment Report 32516.
Work History
In 1982, the occurrence was held as part of the Schemo property by Pharaoh Exploration.
In 2010, Dunham Gold Corp. completed a 495 kilometre airborne geophysical survey on its Porphyry Creek property which covered numerous showings including the Tina showing and area (Assessment Report 31728).
In 2010, Ranex Exploration Inc./Duncastle Gold Corp. conducted site visits to Sultana (093M 061), Tina North, Big Thing (093M 062) and MT (093M 063); 480 soil samples were collected and three diamond-drill holes were completed for a total of 1330.5 metres (Assessment Report 32516). The Sultana prospect was the main focus of the 2010 exploration and drilling program. Site visits were also made to the MT showing, the Big Thing showing and various areas of geophysical interest around the Tina showing.
The Porphyry Creek project consists of 13 mineral claims covering an area of 4811 hectares (ca. 2017). The claims overlap a small group of Crown-granted claims that surround the past-producing Red Rose tungsten mine (093M 067) and it is assumed that this area is fully excluded from the property.
The Porphyry Creek property contains eight separate MINFILE occurrences listed as: Armagosa (093M 068), Balsam (093M 059), Big Thing (093M 062), Brian Boru (093M 064), Brunswick (093M 066), Jupiter (093M 065), Sultana (093M 061), and Tina (093M 060). The Brunswick mine had some minor production from two adits driven to 20 and 52 metres, respectively and possibly from open cuts, prior to 1950. Development occurred mainly in the 1920s, and the total amount of ore produced is unknown, but ‘thirty bags’ of handpicked ore are reported from a later operator in 1954. Other occurrences that are reported to have some old development workings include the Armagosa and the Brian Boru, consisting of small open cuts and short adits. The Sultana prospect has had more extensive past exploration, including substantial trenching (essentially small-scale mining) and limited drilling on a high grade silver vein. This prospect was the main focus of an exploration and drilling program in 2010 and 2011 that identified extensive low grade copper and molybdenum mineralization below and to the northwest of the historical workings.
In 2018, Lansdown Holdings completed a minor program of prospecting and soil and rock sampling on the area.
Refer to Sultana (093M 061) for further details of the Porphyry Creek property work.
