Identification_Information: Citation: Citation_Information: Originator: Harun, N.T. Originator: Hendricks, M.D. Publication_Date: 2018 Title: Jarvis Creek coal report Geospatial_Data_Presentation_Form: report, tables Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2018-2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 11 p. Online_Linkage: http://doi.org/10.14509/30064 Description: Abstract: In July and August of 2016, the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted a field study in the Jarvis Creek coal field to better characterize these coal deposits. The Jarvis Creek Coal field is located on the north side of the Alaska Range in the Mt. Hayes C-4 quadrangle. It represents the eastern-most coal field in the east-west trending Nenana Coal Province. Located approximately 10 miles southeast of Donnelly Dome, it is bounded on the west by the Delta River, on the east by Jarvis Creek and on the south by Ruby Creek. The field is three to six miles east of the Richardson Highway and is approximately 16 square miles in area. Coal-bearing outcrops of the lower, middle, and upper units were examined in three locations in the Jarvis Creek coalfield. These locations include: 1) north of Ruby Creek, 2) the end of Coal Mine Road near the old Ober Creek mine site, and 3) near Sargent Creek in the northern part of the field. All coal samples were collected as channel samples. Eighteen samples were collected from six stations. This Preliminary Interpretive Report presents results from coal quality (proximate and ultimate analysis), Rock-Eval, hydrous pyrolysis, vitrinite reflectance, and kerogen microscopy analyses. Users can access the complete report and digital data from the DGGS website: http://doi.org/10.14509/30064. Purpose: This Preliminary Interpretive Report presents results from coal quality (proximate and ultimate analysis), Rock-Eval, hydrous pyrolysis, vitrinite reflectance, and kerogen microscopy analyses. Supplemental_Information: >jarvis-creek-coal-proximate-analysis: coal proximate analyses >jarvis-creek-coal-rock-eval-ro-toc: Rock-Eval, vitrinite reflectance (Ro), and total organic carbon (TOC) >jarvis-creek-coal-ultimate-analysis: coal ultimate analyses, sulfur types, equilibrium moisture, BTU, and coal ranking Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2016 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -145.787460 East_Bounding_Coordinate: -145.747340 North_Bounding_Coordinate: 63.683440 South_Bounding_Coordinate: 63.621840 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Analyses Theme_Keyword: Analyses and Sampling Theme_Keyword: Analytical Lab Results Theme_Keyword: Analytical Results Theme_Keyword: Coal Quality Theme_Keyword: Energy Theme_Keyword: Energy Resources Theme_Keyword: Gas Theme_Keyword: Gas Basins Theme_Keyword: Gas Chemistry Theme_Keyword: Geochemistry Theme_Keyword: Geology Theme_Keyword: Hydrocarbon Theme_Keyword: Hydrocarbon Potential Theme_Keyword: Kerogen Theme_Keyword: Lignite Theme_Keyword: Proximate Analyses Theme_Keyword: Pyrolysis Theme_Keyword: Resource Information Theme_Keyword: Resources Theme_Keyword: Rocks Theme_Keyword: Sedimentary Rocks Theme_Keyword: Shale Theme_Keyword: Total Organic Carbon Theme_Keyword: Ultimate Analyses Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Mount Hayes Quadrangle Place_Keyword: Ober Creek Place_Keyword: Ruby Creek Place_Keyword: Sargent Creek Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Jarvis Creek Coal Stratum_Keyword: Lignite Creek Formation Stratum_Keyword: Suntrana Formation Temporal: Temporal_Keyword_Thesaurus: Walker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of America Temporal_Keyword: Tertiary Access_Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below). Use_Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Data_Set_Credit: This work was made possible by the National Coal Resource Data System (NCRDS) program of the USGS as Y17 Studies of Petroleum Source Potential of Alaska Coal. The authors wish to thank Joe East (USGS) for his help. The authors gratefully acknowledge David LePain for help on all aspects of this project. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: This publication is PRELIMINARY in nature and meant to allow rapid release of field observations or initial interpretations of geology or analytical data. It has undergone limited peer review but does not necessarily conform to DGGS editorial standards. Interpretations or conclusions contained in this publication are subject to change. The procedures used to ensure analytical quality are discussed in the accompanying manuscript. Users will need to contact the originating laboratory for additional detail. Logical_Consistency_Report: not applicable Completeness_Report: This data release is complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Sample locations were collected using hand-held GPS units. Uncertainty associated with the location coordinates is in the range of 1-10 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Bostick, N.H. Originator: Daws, T.A. Publication_Date: 1994 Title: Relationships between data from Rock-Eval pyrolysis and proximate, ultimate, petrographic, and physical analyses of 142 diverse U.S. coal samples Series_Information: Series_Name: null Issue_Identification: v. 21, p. 35-49 Publication_Information: Publication_Place: Amsterdam Publisher: Organic Geochemistry Online_Linkage: null Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Bostick, N.H. and Daws, T.A., 1994 Source_Contribution: Rock-Eval, vitrinite reflectance, and TOC Process_Step: Process_Description: Sample collection - In July and August of 2016, coal-bearing outcrops of the lower, middle, and upper units were examined in three locations in the Jarvis Creek coalfield. These locations include: 1) north of Ruby Creek, 2) the end of Coal Mine Road near the old Ober Creek mine site, and 3) near Sargent Creek in the northern part of the field. All coal samples were collected as channel samples. Eighteen samples were collected from six stations. Process_Date: 2016 Process_Step: Process_Description: Proximate and Ultimate analyses - Geochemical Testing (2005 N. Center Avenue, Somerset, PA) conducted Proximate and Ultimate analyses following the American Society for Testing and Materials standards for coal analyses (ASTM, 2002). Process_Date: 2017 Process_Step: Process_Description: Rock-Eval, vitrinite reflectance, and TOC - Weatherford Laboratories (Houston, Texas) analyzed samples for Rock-Eval and vitrinite reflectance (Ro) (table 3). Unfortunately, total organic carbon (TOC) was not measured on any of the samples. Bostick and Daws (1994) showed a close correlation between TOC and "dry basis" carbon from ultimate analysis in low-rank coals (less than 0.8% Ro max). The Jarvis Creek coals are low-rank, so "dry basis" carbon from ultimate analysis was used as a proxy for TOC Source_Used_Citation_Abbreviation: Bostick, N.H. and Daws, T.A., 1994 Process_Date: 2017 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: World Geodetic System of 1984 Ellipsoid_Name: WGS 84 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257223563000025 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: jarvis-creek-coal-proximate-analysis Entity_Type_Label: pir2018-2-jarvis-creek-coal-proximate-analysis.csv Entity_Type_Definition: coal proximate analyses Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) and (2005 N. Center Avenue, Somerset, PA) Attribute: Attribute_Label: sample_id Attribute_Definition: identifier assigned by the person who collected the sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: string Attribute: Attribute_Label: latitude Attribute_Definition: latitude, WGS84 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: longitude Attribute_Definition: longitude, WGS84 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: lab_id Attribute_Definition: lab identifier Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: string Attribute: Attribute_Label: collector Attribute_Definition: geologist collecting data Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: string Attribute: Attribute_Label: date Attribute_Definition: date data collected Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: date Attribute: Attribute_Label: analysis_date Attribute_Definition: date data analyzed in lab Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: date Attribute: Attribute_Label: moisture Attribute_Definition: all moisture in the coal sample that can be removed by heating in a 107deg.C oven Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: ash Attribute_Definition: amount of noncombustible material in sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: volatile_matter Attribute_Definition: amount of gases (non-water) given off by combustion of sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: fixed_carbon Attribute_Definition: amount of residual nonvolatile carbon in sample after combustion Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: jarvis-creek-coal-rock-eval-ro-toc Entity_Type_Label: pir2018-2-jarvis-creek-coal-rock-eval-ro-toc.csv Entity_Type_Definition: Rock-Eval, vitrinite reflectance (Ro), and total organic carbon (TOC) Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) and Weatherford Laboratories (Houston, Texas) Attribute: Attribute_Label: sample_id Attribute_Definition: identifier assigned by the person who collected the sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: string Attribute: Attribute_Label: latitude Attribute_Definition: latitude, WGS84 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: longitude Attribute_Definition: longitude, WGS84 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: TOC Attribute_Definition: total organic carbon Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: S1 Attribute_Definition: the amount of free hydrocarbons in the sample (mg of hydrocarbon per gram of rock) Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: S2 Attribute_Definition: the amount of hydrocarbons that are produced through the thermal cracking process. An indicator of generation potential (mg of hydrocarbon per gram of rock) Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: S3 Attribute_Definition:  the amount of CO2  produced during pyrolysis of kerogen. (in milligrams CO2 per gram of rock) Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: TmaxC Attribute_Definition: the temperature during pyrolysis where maximum hydrocarbons are released Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: Ro Attribute_Definition: vitrinite reflectance Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: HI Attribute_Definition: hydrogen index (HI = [100 x S2]/TOC). HI is used to define the origin of organic matter Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: OI Attribute_Definition: oxygen index (OI = [100 x S3]/TOC) Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: S2_S3 Attribute_Definition: S2/S3 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: S1_TOCX100 Attribute_Definition: (S1/TOC ) Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: PI Attribute_Definition: production index used to determine the maturity of the organic matter. (PI = S1/[S1 + S2]) Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: jarvis-creek-coal-ultimate-analysis Entity_Type_Label: pir2018-2-jarvis-creek-coal-ultimate-analysis.csv Entity_Type_Definition: coal ultimate analyses, sulfur types, equilibrium moisture, BTU, and coal ranking Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) and Alaska Volcano Observatory Attribute: Attribute_Label: sample_id Attribute_Definition: identifier assigned by the person who collected the sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: string Attribute: Attribute_Label: latitude Attribute_Definition: latitude, WGS84 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: longitude Attribute_Definition: longitude, WGS84 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: hydrogen Attribute_Definition: weight percent of hydrogen in the coal sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: carbon Attribute_Definition: weight percent of carbon in the coal sample including in volatile matter Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: nitrogen Attribute_Definition: weight percent of nitrogen in the coal sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: ultimate_sulfur Attribute_Definition: measured weight percent of sulfur in coal Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: ultimate_oxygen Attribute_Definition: total oxygen in weight percent as calculated as the remaining major elemental value from subtraction of the other major elements and ash Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: ultimate_ash Attribute_Definition: amount of noncombustible material in sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: sulfate_sulfur Attribute_Definition: weight percent of sulfate sulfur in the sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: pyritics_sulfur Attribute_Definition: weight percent of pyritic sulfur in the sample Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: organic_sulfur Attribute_Definition: weight percent of organic sulfur in the coal matrix as calculated by the difference in total sulfur minus elemental and inorganic sulfur Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: equilibrium_moisture Attribute_Definition: calculated coal sample moisture level at equilibrium moisture conditions in accordance with ASTM method D1412 Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: BTU Attribute_Definition: caloric value of coal is a measure of energy produced from the coal Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: double Attribute: Attribute_Label: coal_ranking Attribute_Definition: coal rank differentiating the stages of coalification Attribute_Definition_Source: this report Attribute_Domain_Values: Unrepresentable_Domain: string Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Resource_Description: PIR 2018-2 Distribution_Liability: The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product. Standard_Order_Process: Non-digital_Form: DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount. Fees: Contact DGGS for current pricing Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: rock-eval-toc Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://doi.org/10.14509/30064 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20180914 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Person: Simone Montayne Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Use_Constraints: If the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys. Metadata_Extensions: Online_Linkage: http://www.dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions