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One of the Region's Most Important Gold Targets
Robertson (100% owned) is an advanced-staged exploration project located along the Battle Mountain/Cortez Gold trend in north-central Nevada and immediately adjacent to the Pipeline gold mine. Over the past 20 years, Coral Gold and its various venture partners have spent more than $25 million exploring the claims. This activity has led to the discovery of five mineralized zones: Porphyry, 39A, Gold Pan, Altenburg Hill, Distal and Triplet Gulch.

The following key elements make Robertson one of the regions prime targets for gold exploration:
  • Large, strategically located claim block
  • Inferred mineral resources of 3.4 million ounces
  • Discovered Carlin-type gold mineralization in lower plate rocks north of Pipeline

2008 drill hole location map (Altenburg Hill & Porphyry Zone)

Triplet Gulch Drill Map

2008 drill hole location map (39A & Distal Zone)

NI 43-101 Resource Estimate

2012 Preliminary Economic Assessment Report

Gold Zones Continue to Expand; Resource Increased to 3.4 Million Ounces Exploratory drilling conducted by Coral Gold between 2004 and 2008 significantly expanded the Robertson gold resources to over 3.4 million ounces (based on gold at $850 ounce). In October 2009, Beacon Hill Consultants (1988) Ltd. increased the resource by 47% to reflect higher gold prices.


Zone

Tons

Ounces per Ton

Ounces of Au

Distal

13,310,451

0.0278

382,010

39A

38,945,698

0.0228

887,962

South Zone

9,993,853

0.0209

208,872

Outside

5,422,131

0.0156

84,585

Gold Pan Oxide

12,566,599

0.02

251,332

Altenburg Hill Oxide

12,873,976

0.0125

195,684

Porphyry Oxide

39,049,182

0.0167

652,121

Gold Pan Sulphide

32,524,592

0.0154

500,879

Altenburg Hill Sulphide

1,701,844

0.014

23,826

Porphyry Sulphide

12,535,861

0.0158

198,067

TOTAL

178,924,188

0.0189

3,381,667



Working to Increase Confidence in the Resource

In May 2010, Coral began a new drill program at Robertson intended to increase confidence, develop greater continuity and potentially move part of the current inferred resource of approximately 1.5 million ounces at Gold Pan, Porphyry and Altenburg Hill (87 million tons grading 0.017 oz Au/ton (0.583 g/t) at a cut-off grade of 0.0106 opt) into the measured and indicated categories. The program, consiting of 36 core holes and 12 RC holes, is designed to upgrade the level of confidence in the oxide mineral resource base. It will also provide the basis for a Preliminary Economic Assessment Report used to evaluate the economic viability of the project.

Zone

Short Tons Ore

Ounces per Ton

Ounces of Au

Gold Pan oxide

12,566,599

0.02

251,332

Altenburg Hill oxide

12,873,976

0.015

195,684

Porphyry Oxide

39,049,182

0.017

652,121

Porphyry Sulfide

12,353,861

0.016

198,067

L. Triplet Gulch (South Zone)

9,993,131

0.021

208,585

Total

87,018,749

0.017

1,505,789


Deep Drilling Encounters Carlin-Type Structure with Gold
In 2006, a detailed exploration program of gravity surveys, geological mapping, rock chip and grid soil sampling, as well as re-interpretation of existing airborne magnetic was done. Following up on the results, deep drilling in 2007 encountered Carlin-type geochemistry including gold in the important lower plate host rocks for Carlin-type structure beneath the Roberts Mountains thrust fault. The gold intercepts indicate a Carlin-type system in Lower Plate rocks on a western part of the property. Follow-up mapping, rock sampling and infill gravity surveys in 2008 led to identification of a new lower plate target zone that extends from the Coral deep hole 2 km to the south. The West Deep Carlin-type target adds significant discovery potential for a world-class gold deposit on the Robertson property. The target zone lies north of the Pipeline open pit along a projected mineralized fault and fracture system that controls gold within that deposit. Considerably more drilling on the Robertson West Deep target is warranted.

Geology
Robertson lies along the far eastern flank of the Northern Shoshone Mountains in north-central Nevada within the Basin and Range physiographic province of western North America. The region lies at or very near the rifted margin of continental crust that was subjected to periodic thrust faulting starting in Middle Paleozoic and continuing until Late Cretaceous. The most important of these events affecting the region is a complex set of branching, low-angle faults that are part of the Roberts Mountains thrust fault system. The upper plate of this regional structure is a series of thick, complexly faulted dark-gray, fine-grained siliceous sedimentary and lesser submarine volcanic rocks of early to middle Paleozoic age. While siliceous rocks of the upper plate are widespread in the region, carbonate rocks of the lower plate are comparatively rare and are exposed in a few "structural windows" such as the Gold Acres and Cortez windows that contain most of Barrick's gold mines along the Cortez Trend.

At Robertson, the 3.4 million ounce inferred gold resources are hosted in upper plate rocks in close proximity to Tertiary-age (Eocene-Oligocene) intrusive rocks. In Nevada, emplacement of intrusive rocks is often controlled by anticlinal folds and faults developed in the lower plate. Together, these features provide a complex set of pathways for migrating the gold-bearing fluids that ultimately formed the shallow gold resources at Robertson. These same resources might also be considered major "leakage" anomalies above possible gold mineralization hosted in lower plate rocks. This interpretation represents a lower Cortez Hills-type target concept for the Robertson Property in which one or more high-grade gold deposits, mineable from underground, might be discovered.

The Robertson claims host important structural and geochemical anomalies similar to "deep" gold discoveries at Cortez Hills, deep Pipeline and numerous other deposits along the Battle Mountain/Cortez and Carlin Trends. The anomalies include:
  • Single to multiple dike-filled faults, locally mineralized and showing evidence of protracted episodic fault movements.
  • Multiple intrusive events (Cretaceous-Late Eocene).
  • Significant gold mineralization in the district (>1million ounces of gold), particularly in upper plate rocks that may represent leakage anomalies above a much larger deposit in lower plate rocks at depth.
  • Intersecting major NNW- to NW-trending fault zones with NE-striking faults that contain geochemically anomalous gold: may be analogous with ore controlling structures that host high grade gold in recent deep discoveries.
  • Large-scale anticlinal folds in lower plate carbonate rocks that acted as gold traps in the recent discoveries.
  • On strike with favorable lower plate carbonate rocks that host recent discoveries 4 miles to the south.