Tinka Identifies 1.7 Km Anomalous Geophysical Strike Length At Ayawilca Project, Peru

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[{"type":"text","content":"\n\n\n\n\n\nVANCOUVER, April 23, 2013 /CNW/ - Tinka Resources Limited (the \"Company\"), (TSXV: TK) (Frankfurt: TLD)\n (Pinksheets: TKRFF), announces that reports from the latest geophysical surveys conducted on\n the Company's wholly-owned Ayawilca project located in west-central\n Peru and approximately 40 km northwest of the Cerro de Pasco mine have\n been received.\n\n\nThe surveys and subsequent data processing were performed by Fugro\n Ground Geophysics Pty Ltd (\"FGG\"), Lima. The most recent program\n included an eastern extension to the induced polarization (\"IP\")\n surveys performed in 2010 and 2012. The 2013 IP survey consisted of 9.3\n line-km along 5 lines; the combined survey now consists of 33.7 line-km\n along 17 lines, each spaced 100 m apart.\n\n\nThe data from the three surveys was combined and re-interpreted by FGG,\n and 3-D modeling was applied. Modeling of the IP data permits\n projection of interpretation to 225 m depth in the central and eastern\n parts of the area where a 50 m dipole spacing was employed and to 125 m\n depth in the western part of the survey area where a 25 m dipole\n spacing was used.\n\n\nThe 3-D inversion modeling has determined two significantly large\n chargeability anomalies: one in the northwest part of the study area,\n the other in the central to eastern part. The northwestern anomaly\n (27-40 mV/V) is much shallower than the eastern one; at 50 m depth it\n spans a distance nearly 1,200 m east-west by 400 m north-south. The\n stronger anomaly (25-45 mV/V) in the east-central part of the survey is\n up to 800 m long east-west by 800 m north-south at 200 m depth and\n remains open at depth and to the east. Between 100 m and 150 m the\n east-central anomaly spans the entire length of the survey area, almost\n 1,700 m east-west.\n\n\nZones of high resistivity are noted to about 100 m depth along the\n entire width of the survey area; these are replaced by zones of very\n low resistivity at 200 m depth in the east-central and southern\n portions of the area, but the results in the western portion of the\n grid are not known as the survey in that area did not penetrate to that\n depth. FGG has suggested that the high resistivity anomalies may be\n attributed to a \"silica cap\" and these anomalies are believed to\n represent the Gollarisquizga (\"Gollyar\") sandstones that overlie ...

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