Amarillo Gold Provides New Resource Model, increases Measured Resource by 53% @ 2.00 g/t Au Mara Rosa Project, Brazil
Original announcement by tmx on
- Company
- Amarillo Gold Corp.
- Ticker
- AGC
- Exchange
- TSX
- Region
- Goias, Brazil
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Resource update
- Extracted
- 2026-08-21 13:12:32 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Amarillo Gold has announced a new resource model for the Posse deposit at the Mara Rosa Project in Brazil, significantly increasing the Measured resource by 53% and the Inferred resource by 84% compared to the 2011 estimate. The update, based on 34 new drill holes and improved geophysical data, provides a more robust foundation for updating the project's Pre-Feasibility Study.
Reasoning: Significant growth in Measured and Inferred resource categories driven by new drilling and improved modeling, increasing the overall scale and confidence of the Posse deposit.
Positive factors
- Measured resource increased by 53%
- Inferred resource increased by 84%
- Improved geological confidence via category migration (Inferred to M&I)
- QP sign-off provided
- Cut-off grade disclosed
Facts used in scoring: 6
Classification and evidence
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: The report identifies a significant Measured resource component of 8.568Mt @ 2.00 g/t Au.
Evidence · text
“Measured resource has increased by over 50%”
Category Upgradepositive
Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
Why it applies: The proportion of M+I category that moved to Measured increased, improving confidence.
Evidence · text
“The proportion of the (M+I) category which has moved to a Measured resource increases confidence in the model.”
Tonnage Growthpositive
Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.
Why it applies: Measured resource tonnage increased by 53% and Inferred by 84% vs 2011 estimate.
Evidence · text
“increases Measured Resource by 53% @ 2.00 g/t Au”
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: Keith Whitehouse of AEFS is named as the independent Qualified Person.
Evidence · text
“Keith Whitehouse is the independent Qualified Person (QP) for this resource statement”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The resource was calculated at a 0.5 g/t cutoff.
Evidence · text
“calculated the new resource estimate at a 0.5 g/t cutoff”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Resource Estimates (6)
measuredgoldTonnes: 8568000Grade: 2Grade Unit: g/tContained Metal: 551100Contained Unit: ozView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AGC
Resource Data
- Category
- measured
- Tonnes
- 8568000
- Grade
- 2
- Grade Unit
- g/t
- Contained Metal
- 551100
- Contained Unit
- oz
- Cutoff Grade
- 0.5
Lab
- Laboratory
- Australian Exploration Field Services Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2016-07-21T00:00:00.000Z
Reasoning: Significant expansion of the highest confidence resource category.
Positive factors
- 53% increase in Measured tonnage/ounces
Evidence · table
“2.00”
Context: 8,568,000
indicatedgoldTonnes: 13458000Grade: 1.52Grade Unit: g/tContained Metal: 659000Contained Unit: ozView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AGC
Resource Data
- Category
- indicated
- Tonnes
- 13458000
- Grade
- 1.52
- Grade Unit
- g/t
- Contained Metal
- 659000
- Contained Unit
- oz
- Cutoff Grade
- 0.5
Lab
- Laboratory
- Australian Exploration Field Services Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2016-07-21T00:00:00.000Z
Reasoning: Stable indicated resource component.
Evidence · table
“1.52”
Context: 13,458,000
inferredgoldTonnes: 7119000Grade: 1.26Grade Unit: g/tContained Metal: 287700Contained Unit: ozView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AGC
Resource Data
- Category
- inferred
- Tonnes
- 7119000
- Grade
- 1.26
- Grade Unit
- g/t
- Contained Metal
- 287700
- Contained Unit
- oz
- Cutoff Grade
- 0.5
Lab
- Laboratory
- Australian Exploration Field Services Ltd
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2016-07-21T00:00:00.000Z
Reasoning: Substantial expansion of the exploration-stage resource component.
Positive factors
- 84% increase in Inferred resource
Evidence · table
“1.26”
Context: 7,119,000
measuredgoldTonnes: 5463000Grade: 2.04Grade Unit: g/tContained Metal: 358300Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AGC
Resource Data
- Category
- measured
- Tonnes
- 5463000
- Grade
- 2.04
- Grade Unit
- g/t
- Contained Metal
- 358300
- Contained Unit
- oz
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2011-09-01T00:00:00.000Z
Dates
- Event date
- 2016-07-21T00:00:00.000Z
Reasoning: Historical baseline for comparison.
Evidence · table
“2.04”
Context: 5,463,000
indicatedgoldTonnes: 15393000Grade: 1.65Grade Unit: g/tContained Metal: 816600Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AGC
Resource Data
- Category
- indicated
- Tonnes
- 15393000
- Grade
- 1.65
- Grade Unit
- g/t
- Contained Metal
- 816600
- Contained Unit
- oz
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2011-09-01T00:00:00.000Z
Dates
- Event date
- 2016-07-21T00:00:00.000Z
Reasoning: Historical baseline for comparison.
Evidence · table
“1.65”
Context: 15,393,000
inferredgoldTonnes: 3630000Grade: 1.34Grade Unit: g/tContained Metal: 156400Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AGC
Resource Data
- Category
- inferred
- Tonnes
- 3630000
- Grade
- 1.34
- Grade Unit
- g/t
- Contained Metal
- 156400
- Contained Unit
- oz
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2011-09-01T00:00:00.000Z
Dates
- Event date
- 2016-07-21T00:00:00.000Z
Reasoning: Historical baseline for comparison.
Evidence · table
“1.34”
Context: 3,630,000
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.