Asia

20130808 14000900 1.0 FGDC CSDGM Metadata FALSE Asia 002 26.166700 178.833300 -7.634700 72.750000 1 0.159 Geographic GCS_WGS_1984 Angular Unit: Degree (0.017453) <GeographicCoordinateSystem xsi:type='typens:GeographicCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.0'><WKT>GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG",4326]]</WKT><XOrigin>-399.99999999999989</XOrigin><YOrigin>-399.99999999999989</YOrigin><XYScale>11258999068426.24</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>8.9831528411952133e-009</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><LeftLongitude>-180</LeftLongitude><WKID>4326</WKID></GeographicCoordinateSystem> 20130809 10564300 20130809 11030300 FGDC ESRI ArcGIS 10.0.5.4400 Asia 1 26.166700 178.833300 72.750000 -7.634700 GIS component of the Global Heat Flow project of the AAPGF-OSU Geoscience GIS Consortium. <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Global heat flow data are maintained by the International Heat Flow Commission (IHFC) of the International Association of Seismology and Physics of the Earth's Interior (IASPEI).</SPAN></P></DIV></DIV> The International Heat Flow Commission (IHFC) of the International Association of Seismology and Physics of the Earth's Interior (IASPEI). EMY <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Copyright 2013 by AAPG.</SPAN></P></DIV></DIV> Shapefile 0.159 dataset EPSG 7.4.1 5954 Vector Simple FALSE 5954 TRUE FALSE Feature Class 649 From the 'global' spreadsheet on the website FID FID Internal feature number. ESRI OID 4 0 0 Sequential unique whole numbers that are automatically generated. Shape Shape Feature geometry. ESRI Geometry 0 0 0 Coordinates defining the features. OBJECTID OBJECTID Integer 9 9 0 Data_Numbe Data_Numbe Item Number The World Heat Flow Data Collection - 1975 String 254 0 0 Each item has been allocated a five-digit number except where sites are close together. Closely spaced sites are grouped under a single item number and individual sites follow and are allocated a letter. Item numbers are purely arbitrary; they do not correspond to any previous list, and will probably not remain the same in future lists. The normal criterion for grouping has been a spacing of less than 10 km and a similar geological environment. It has not always been possible to apply this rigorously, particularly where measurements have been made in lines of more than 10 km, and some arbitrary decisions have been necessary. Oceanic data have not been grouped. Codes Codes Descriptive Code The World Heat Flow Data Collection - 1975 String 254 0 0 The system of descriptive codes developed by Lee and Uyeda (1965) has been continued with some modification. Notes are to be found below and details are presented in Tables 2 - 8. Site_Name Site_Name Name of Site The World Heat Flow Data Collection - 1975 String 254 0 0 The name is included for ease of recognition. It is not essential to the data, but it is a great help in compilation, verification and reading. Only eight characters are provided, and some abbreviation has been necessary. Latitude Latitude Latitude The World Heat Flow Data Collection - 1975 Double 19 0 0 Although it is pointless to report heat flow results without specifying the position of the sites, it is surprising how many authors have omitted this information. Missing coordinates have been inserted by the compilers whenever possible, but otherwise the data have been omitted. It would be helpful if future writers would avoid using national grid systems or longitude based on anything but Greenwich, since these cannot always be readily translated by compilers or users. Longitude Longitude Longitude The World Heat Flow Data Collection - 1975 Double 19 0 0 Although it is pointless to report heat flow results without specifying the position of the sites, it is surprising how many authors have omitted this information. Missing coordinates have been inserted by the compilers whenever possible, but otherwise the data have been omitted. It would be helpful if future writers would avoid using national grid systems or longitude based on anything but Greenwich, since these cannot always be readily translated by compilers or users. Elevation Elevation Elevation (meters) The World Heat Flow Data Collection - 1975 Double 19 0 0 Elevation is less important than horizontal coordinates, but it completes the specification of position. The elevation of the solid surface at the measuring point is recorded, whether it be dry land, sea bed or lake bed. minD minD Minimum Depth Interval / Water Depth (meters) The World Heat Flow Data Collection - 1975 Double 19 0 0 (On Land) The minimum depth from which data were taken and used for calculating heat flow provides an indication of quality. (In Lakes) This column gives the depth of water at the measurement site. It is not needed for oceanic measurements, since depth is the inverse of elevation, which is given in column 6. maxD maxD Maximum Depth Interval / Penetration (meters) The World Heat Flow Data Collection - 1975 Double 19 0 0 (On Land) The maximum depth from which data were taken and used for calculating heat flow provides an indication of quality. (In Lakes and Oceans) Penetration is the equivalent of factor 8 for land measurements, since it gives the maximum depth of temperature measurement. No__Temps No__Temps Number of Temperature Data The World Heat Flow Data Collection - 1975 Double 19 0 0 This number shows how many temperature points were used in the calculation of temperature gradient, and is included as a quality indicator. Gradient Gradient Temperature Gradient (mK/m) The World Heat Flow Data Collection - 1975 Double 19 0 0 Temperature gradient is only recorded if it is reasonably uniform over the interval of measurement. It is not corrected for climatic change or any other disturbance unless the author has presented it in a corrected form. No__Cond_ No__Cond_ Number of Conductivity Measurements The World Heat Flow Data Collection - 1975 Double 19 0 0 This number is also a quality indicator. Where conductivity has been estimated by rock type or from previously existing data from adjacent sites this number has been set as zero, whereas a blank signifies lack of information. Conductivi Conductivi Average Conductivity (W/mK) The World Heat Flow Data Collection - 1975 Double 19 0 0 Conductivity has only been recorded if the individual values are reasonably uniform or if the borehole penetrates a single rock-type. No_Heat_Pr No_Heat_Pr Number of Heat Generation Measurements The World Heat Flow Data Collection - 1975 String 254 0 0 This number records the number of samples used for analysis of heat production by radioactive decay. The sample may be from the drill core or from representative samples from surrounding areas that have been associated with the heat flow site by the authors. Heat_Prod_ Heat_Prod_ Average Heat Production / Bottom-Water Temperature (W/m3 (On Land) or ⁰C (In Oceans or Lakes)) The World Heat Flow Data Collection - 1975 String 254 0 0 (On Land) The figure recorded here is the value chosen by the author to represent the upper crust at the heat flow site. (In Oceans) A few authors have reported the temperature of the water immediately above the ocean floor. This may be regarded as an indicator of the possibility of significant temperature fluctuation. See Code 7, Table 8. (In Lakes) Bottom-water temperature and its variability is an important factor in lake measurements, but there may also be associated heat generation data. To avoid confusion, column 13 contains the letter W (for water) when bottom water temperature is given in column 14, and column 13 contains a number or is blank when heat generation is given. Since lake measurements are often grouped it is possible to give heat generation data with the group summary and water temperature with the sub-items. Only in lake measurements, indicated by K or L in code 3 is this distinction applied. Heat_Flow Heat_Flow Heat Flow (mW/m^2) The World Heat Flow Data Collection - 1975 Double 19 0 0 The compilation of heat flow data is the prime purpose of this work. A few items are included without heat flow data, but these include a bottom-water temperature. Land values are always given to the nearest 1.0 mW/m, which permits an uncertainty of 1% of the average value and is always adequate, Ocean values are given to 0.1 mW/m, since differences of this order may be significant between measurements made in sequence, with the same equipment, in closely spaced surveys. Measurements where this precision is justified are a small minority, and in no item is the absolute value of heat flow accurate to this level. The plus sign (+) in front of some heat flow values is substituted for the greater than (>) symbol in order to provide computer compatibility for formatted data. A negative sign (-) before the heat flow value indicates that the heat flow is negative. No__sites No__sites Number of Individual Sites The World Heat Flow Data Collection - 1975 String 254 0 0 This number is one except where grouping has occurred, and it is left blank in sub-items. Some authors have reported results based on several holes, but do not give sufficient data to allow the listing of individual sites. In such situations the sub-items have been omitted, so it must not be assumed that an item having a number greater than one will always be followed by the appropriate number of sub-items. Year_of_Pu Year_of_Pu Date of Publication The World Heat Flow Data Collection - 1975 Double 19 0 0 The year of publication are recorded as an indicator of the age of the data in computer-accessible form. This information is also included in the references. Reference Reference Reference The World Heat Flow Data Collection - 1975 String 254 0 0 This number gives the source of the data according to the bibliography that follows the data list. The lists of Lee and Uyeda (1965), and Simmons and Horai (1968), have been combined with the new references and numbered in alphabetical order. Comments Comments Reference The World Heat Flow Data Collection - 1975 String 254 0 0 This number gives the source of the data according to the bibliography that follows the data list. The lists of Lee and Uyeda (1965), and Simmons and Horai (1968), have been combined with the new references and numbered in alphabetical order. Comments2 Comments2 Unknown String 254 0 0 This column was included in the spreadsheet on the IHFC website, but there is no explanation on the website or in the document from 1975. 20130809 Asia Compilation by Derrick Hasterok This new compilation was provided by Derrick Hasterok and has been modified from its original form to fit the data structure of the current IHFC database. Previous compilations of the data were provided by Lee and Uyeda (1965), Simmons and Horai (1968), Jessop, Hobart, and Sclater (1975), and Pollack, Hurter, and Johnson, 1993. AAPG Datapages Tulsa, Oklahoma The International Heat Flow Commission Derrick Hasterok A.M. Jessop M.A. Hobart J.G. Sclater http://www.heatflow.und.edu/index2.html English (United States) Global heat flow data are maintained by the International Heat Flow Commission (IHFC) of the International Association of Seismology and Physics of the Earth's Interior (IASPEI). GIS component of the Global Heat Flow project of the AAPGF-OSU Geoscience GIS Consortium. Shapefile 26.1667 178.8333 72.7500000000001 -7.63469999999995 AAPG Datapages GIS Team You may find more information about the AAPGF-OSU Geoscience GIS Consortium and its projects at www.datapages.com. Global Heat Flow Principal Investigator: Dr. William Gosnold GISConsortium@aapg.org Copyright 2013 by AAPG. The International Heat Flow Commission (IHFC) of the International Association of Seismology and Physics of the Earth's Interior (IASPEI). ESRI ArcGIS 10.0.5.4400 en 20130808 GCS_WGS_1984 D_WGS_1984 WGS_1984 6378137