{"id":35520,"date":"2020-05-29T08:50:18","date_gmt":"2020-05-29T08:50:18","guid":{"rendered":"https:\/\/www.bgs.ac.uk\/?post_type=research_project&#038;p=35520"},"modified":"2020-05-29T21:10:50","modified_gmt":"2020-05-29T21:10:50","slug":"bolivia-regional-geochemical-survey","status":"publish","type":"research_project","link":"https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/bolivia-regional-geochemical-survey\/","title":{"rendered":"Bolivia Regional Geochemical Survey"},"content":{"rendered":"\t\t\t<section class=\"hero-section hero-section-with-social\">\n\t\t\t\t\t\t\t\t<div class=\"hero-info-wrap\">\n\t\t\t\t\t<div class=\"container\">\n\t\t\t\t\t\t<div class=\"row\">\n\t\t\t\t\t\t\t<div class=\"col-12\">\n\t\t\t\t\t\t\t\t<div class=\"hero-info\">\n\t\t\t\t\t\t\t\t\t<h1>Eastern Bolivia Regional Drainage Geochemical Survey CD-ROM Version 2.0: September 2007<\/h1>\n\t\t\t\t\t\t\t\t\t<p>BGS research \u2013 International geochemistry CD-ROM series<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t<div class=\"social-wrap social-wrap-inline-them\">\n\t\t\t\t<div class=\"sea-background-f\">\n\t\t\t\t\t<span>Share this article<\/span><a target=\"_blank\"  href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/bolivia-regional-geochemical-survey\/\"><span class=\"icon-facebook\"><span class=\"hidden\">Facebook<\/span><\/span><\/a><a target=\"_blank\"  href=\"https:\/\/twitter.com\/intent\/tweet?text=Bolivia%20Regional%20Geochemical%20Survey&#038;url=https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/bolivia-regional-geochemical-survey\/\"><span class=\"icon-twitter\"><span class=\"hidden\">Twitter<\/span><\/span><\/a><a   onclick=\"javascript:void( (function() {var e=document.createElement('script' );e.setAttribute('type','text\/javascript' );e.setAttribute('charset','UTF-8' );e.setAttribute('src','\/\/assets.pinterest.com\/js\/pinmarklet.js?r='+Math.random()*99999999);document.body.appendChild(e)})());\"  href=\"javascript:void(0);\"><span class=\"icon-pinterest\"><span class=\"hidden\">Pinterest<\/span><\/span><\/a><a target=\"_blank\"  href=\"https:\/\/wa.me?text=https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/bolivia-regional-geochemical-survey\/\"><span class=\"icon-whatsapp\"><span class=\"hidden\">WhatsApp<\/span><\/span><\/a><a   href=\"mailto:?subject=Bolivia%20Regional%20Geochemical%20Survey&#038;body=Between%201976%20and%201982,%20the%20Overseas%20Directorate%20of%20BGS,%20United%20Kingdom%20and%20the%20Geological%20Survey%20of%20Bolivia,%20Santa%20Cruz,%20carried%20out%20a%20major%20reconnaissance%20geological%20mapping,%20geochemical%20sampling%20and%20mineral%20exploration%20programme%20of%20that%20part%20of%20the%20Precambrian%20Brazilian%20Shield%20lying%20within%20eastern%20Bolivia.%20(https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/bolivia-regional-geochemical-survey\/)\"><span class=\"icon-mail\"><span class=\"hidden\">Email<\/span><\/span><\/a><a href=\"#\" data-copy=\"https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/bolivia-regional-geochemical-survey\/\" class=\"copy-url-on-click\"><span class=\"icon-link\"><span class=\"hidden\">Copy Link<\/span><\/span><\/a><\/div><\/div>\t\t\t\t\t\t\t<\/section>\n\t\t\t\n\n\n<section class=\"wp-block-bgs-blocks-content-container content-section\"><div class=\"container\"><div class=\"row\"><div class=\"col-12\">\n<p>Taken from Preface to the Geochemical Atlas of Eastern Bolivia.<\/p>\n\n\n\n<p>Between 1976 and 1982, the Overseas Directorate of BGS, United Kingdom and the Geological Survey of Bolivia, Santa Cruz, carried out a major reconnaissance geological mapping, geochemical sampling and mineral exploration programme of that part of the Precambrian Brazilian Shield lying within eastern Bolivia. Previous geological work had been undertaken in the area, but this was the first time that a systematic and fully integrated survey had been attempted. The Project area is approximately 220 000 km<sup>2<\/sup> and regional geochemical samples were collected from 8185 sites producing an overall sampling density of one sample per 27 km<sup>2<\/sup> . Because of logistic problems it was impossible to sample certain inaccessible areas so the actual sampling density was one sample per 16 km<sup>2<\/sup> for the 130 000 km<sup>2<\/sup> effectively sampled. The geochemical samples were analysed in the Project laboratories in Santa Cruz and in the GEOBOL geochemical laboratories in La Paz. Uranium analyses were carried out by a commercial laboratory in the UK. The results of the Project are incorporated in 21 comprehensive reports in both English and Spanish. 12 describe the geology, geochemistry and mineral potential of the individual 1:250 000 map areas and the remainder are devoted to the geology and mineral potential of areas of special geological or economic interest. <\/p>\n\n\n\n<p>The geology and mineral potential of the whole of the project area are summarised in:<\/p>\n\n\n\n<p>Litherland M et al. 1986. The geology and mineral resources of the Bolivian Precambrian. British Geological Survey Overseas Memoir No. 9, BGS Keyworth, Nottingham, UK<\/p>\n\n\n\n<p>The results of the regional geochemical survey are presented in:<\/p>\n\n\n\n<p>Appleton J D and Llanos A. 1985. Geochemical Atlas of Eastern Bolivia. British Geological Survey, Keyworth, Nottingham, UK.<\/p>\n\n\n\n<p>These results are presented as 22 single element 1:1 million scale, classed proportional symbol, point source data maps in which the symbols are overprinted on a simplified geological base map in order to facilitate rapid data interpretation. A 1:4 million scale moving average map based on a 4 x 4 km cell size and a 10 km search radius, printed alongside the symbol map, identifies the major regional variations. This combination of maps permits the identification of regional related to major variations of bedrock composition as well as single or clusters of anomalously high values that may be indicative of mineralisation.<\/p>\n\n\n<div  class=\"accordions\">\n\t\t\t\t<div class=\"acc-wrap\">\n\t\t\t\t\t<button class=\"acc-top secondary-background icon-arrow button no-btn\"><span class=\"button-content\" tabindex=\"-1\">Explanation of fields and codes in database<\/span><\/button>\n\t\t\t\t\t<div class=\"acc-body sea-background-e\">\n\t\t\t\t\t\t<h3><strong>Fields in database:<\/strong><\/h3>\n<ol>\n<li>Samptype: Sample type:- \u00a0\u00a0F = Stream Sediment,\u00a0\u00a0S = Soil<\/li>\n<li>Sampno<strong>:<\/strong> Unique sample identifier<\/li>\n<li>UTMZone: Universal Transverse Mercator Projection Zone number<\/li>\n<li>Easting: x co-ordinates as read from 1:100,000 field maps (1 grid unit = 1 metre but read to nearest 100 m)<\/li>\n<li>Northing: y co-ordinates as read from 1:100 000 field maps (1 grid unit = 1 metre but read to nearest 100 m)<\/li>\n<li>Rockcode: Catchment area rock type code:<\/li>\n<\/ol>\n<h3><strong>Codes for Rockcode in the Projecto Precambrico dataset<\/strong><\/h3>\n<div class=\"col-12 responsive-table\"><table>\n<thead>\n<tr>\n<th data-name=\"Period or Era\">Period or Era<\/th>\n<th data-name=\"Stratigraphic Unit\">Stratigraphic Unit<\/th>\n<th data-name=\"Code\">Code<\/th>\n<\/tr>\n<\/thead>\n<tbody><tr>\n<td data-before=\"Period or Era\">Cretaceous<\/td><td data-before=\"Stratigraphic Unit\">El Porton Group<\/td><td data-before=\"Code\">CRE<\/tr><tr>\n<td data-before=\"Period or Era\">Jurassic &#8211; Cretaceous<\/td><td data-before=\"Stratigraphic Unit\">Carbonatite complex<\/td><td data-before=\"Code\">CAR<\/tr><tr>\n<td data-before=\"Period or Era\">Jurassic &#8211; Cretaceous<\/td><td data-before=\"Stratigraphic Unit\">Alkaline igneous complexes<\/td><td data-before=\"Code\">SYN, GTS<\/tr><tr>\n<td data-before=\"Period or Era\">Silurian &#8211; Devonian<\/td><td data-before=\"Stratigraphic Unit\">San Jos\u00e9 and Santiago Groups<\/td><td data-before=\"Code\">DEV<\/tr><tr>\n<td data-before=\"Period or Era\">Upper Proterozoic ? Cambrian<\/td><td data-before=\"Stratigraphic Unit\">Boqui, Tucavaca and Murceilago Groups<\/td><td data-before=\"Code\">BOQ, COA, COC<\/tr><tr>\n<td data-before=\"Period or Era\">Upper Proterozoic ? Cambrian<\/td><td data-before=\"Stratigraphic Unit\">Huanchaka Dolerite Suite<\/td><td data-before=\"Code\">BAS<\/tr><tr>\n<td data-before=\"Period or Era\">Middle Proterozoic<\/td><td data-before=\"Stratigraphic Unit\">Sunsas Granites and granodiorites<\/td><td data-before=\"Code\">GTO<\/tr><tr>\n<td data-before=\"Period or Era\">Middle Proterozoic: Rinc\u00f3n del Tigr\u00e9<\/td><td data-before=\"Stratigraphic Unit\">Mafic Rocks<\/td><td data-before=\"Code\">BAS<\/tr><tr>\n<td data-before=\"Period or Era\">Igneous Complex<\/td><td data-before=\"Stratigraphic Unit\">Ultramafic Rocks<\/td><td data-before=\"Code\">UMA<\/tr><tr>\n<td data-before=\"Period or Era\">Middle Proterozoic<\/td><td data-before=\"Stratigraphic Unit\">Sunsas and Vibosi Groups<\/td><td data-before=\"Code\">SUN, TAB<\/tr><tr>\n<td data-before=\"Period or Era\"><\/td><td data-before=\"Stratigraphic Unit\">San Ignacio Alkaline complex (nordmarkite)<\/td><td data-before=\"Code\">SYN<\/tr><tr>\n<td data-before=\"Period or Era\">Middle<\/td><td data-before=\"Stratigraphic Unit\">San Ignacio Post-kinematic Granite<\/td><td data-before=\"Code\">PG, PGA, PGD, PGP, PGT, PGR<\/tr><tr>\n<td data-before=\"Period or Era\">Proterozoic<\/td><td data-before=\"Stratigraphic Unit\">San Ignacio Syn-kinematic Granite<\/td><td data-before=\"Code\">GTA, PGA, PGC, PGJ, PGL, PGO, PGV<\/tr><tr>\n<td data-before=\"Period or Era\"><\/td><td data-before=\"Stratigraphic Unit\">San Ignacio Granophyre Complexes<\/td><td data-before=\"Code\">PGC, PGG, PGV<\/tr><tr>\n<td data-before=\"Period or Era\">Middle Proterozoic<\/td><td data-before=\"Stratigraphic Unit\">Basic and ultramafic igneous rocks in the San Ignacio Supergroup<\/td><td data-before=\"Code\">BAS, PEB<\/tr><tr>\n<td data-before=\"Period or Era\">Middle Proterozoic<\/td><td data-before=\"Stratigraphic Unit\">San Ignacio Supergroup<\/td><td data-before=\"Code\">ESQ, NAR, PAJ, PCA, PDE, PLB, PNC, PNH, PPE, PSS<\/tr><tr>\n<td data-before=\"Period or Era\">Lower Proterozoic<\/td><td data-before=\"Stratigraphic Unit\">Chiquitania Complex and Lomas Maneches Complex<\/td><td data-before=\"Code\">CGC, GNS, PBE, PEN, PHG, PMG, PRP<\/tbody>\n<\/table><\/div>\n<ol start=\"7\">\n<li>Cover: Nature of superficial cover:-\u00a0\u00a0N = Not covered, \u00a0\u00a0L = Laterite,\u00a0\u00a0A = Alluvium and aeolian sands<\/li>\n<li>Area: Map sheet code for sample collection site<\/li>\n<\/ol>\n<div class=\"col-12 responsive-table\"><table>\n<thead>\n<tr>\n<td><strong>Area code<\/strong><\/td>\n<td><strong>1:250k Sheet name<\/strong><\/td>\n<td><strong>Sheet number<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Magdalena<\/td>\n<td>SD20-2 + SD20-6<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Puerto Villazon<\/td>\n<td>SD20-3 + SD20-7<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Huachi<\/td>\n<td>SD20-10<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Perseverancia<\/td>\n<td>SD20-11<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Huanchaca<\/td>\n<td>SD20-8 + SD20-12<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>Ascension<\/td>\n<td>SD20-14<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>Monte Verde<\/td>\n<td>SD20-15<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Manomo<\/td>\n<td>SD20-18<\/td>\n<\/tr>\n<tr>\n<td>17xxx<\/td>\n<td>Concepcion<\/td>\n<td>SE20-2 + SE20-3<\/td>\n<\/tr>\n<tr>\n<td>4200x<\/td>\n<td>San Ignacio<\/td>\n<td>SE20-4<\/td>\n<\/tr>\n<tr>\n<td>47xxx<\/td>\n<td>San Matias<\/td>\n<td>SE21-1 + SE21-2<\/td>\n<\/tr>\n<tr>\n<td>402015-25<\/td>\n<td>San Jose de Chiquitos<\/td>\n<td>SE20-7 + SE20-8<\/td>\n<\/tr>\n<tr>\n<td>57xxx<\/td>\n<td>Santo Corazon<\/td>\n<td>SE21-5 + SE21-9<\/td>\n<\/tr>\n<tr>\n<td>67xxx-68xxx<\/td>\n<td>Laguna Gaiba<\/td>\n<td>SE21-6 + SE21-10<\/td>\n<\/tr>\n<tr>\n<td>77xx<\/td>\n<td>Velasco<\/td>\n<td>project area largely in SD20-18<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<ol start=\"9\">\n<li>x: x UTM Co-ordinates calculated on UTM Zone 20<\/li>\n<li>y: x UTM Co-ordinates calculated on UTM Zone 20<\/li>\n<li>Element field: chemical symbol plus method of analysis<\/li>\n<\/ol>\n<ul>\n<li>AAS atomic adsorption spectroscopy<\/li>\n<li>OES optical emission spectroscopy<\/li>\n<li>COL colorimetric<\/li>\n<li>DNA delayed neutron activation<\/li>\n<li>LOI % Loss of weight on ignition of sample at 450\u00b0 C<\/li>\n<\/ul>\n<ol start=\"12\">\n<li><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 P<\/strong>hase: Phase of project (1 or 2)<\/li>\n<\/ol>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div><div  class=\"accordions\">\n\t\t\t\t<div class=\"acc-wrap\">\n\t\t\t\t\t<button class=\"acc-top secondary-background icon-arrow button no-btn\"><span class=\"button-content\" tabindex=\"-1\">Detection limits<\/span><\/button>\n\t\t\t\t\t<div class=\"acc-body sea-background-e\">\n\t\t\t\t\t\t<p>Values in ppm assigned to samples below the limit of detection are:<\/p>\n<div class=\"col-12 responsive-table\"><table>\n<thead>\n<tr>\n<th data-name=\"ELEMENT\">ELEMENT<\/th>\n<th data-name=\"\"><\/th>\n<th data-name=\"ELEMENT\">ELEMENT<\/th>\n<th data-name=\"\"><\/th>\n<th data-name=\"ELEMENT\">ELEMENT<\/th>\n<th data-name=\"\"><\/th>\n<th data-name=\"ELEMENT\">ELEMENT<\/th>\n<th data-name=\"\"><\/th>\n<\/tr>\n<\/thead>\n<tbody><tr>\n<td data-before=\"ELEMENT\">Ag<\/td><td data-before=\"\">0.5<\/td><td data-before=\"ELEMENT\">As<\/td><td data-before=\"\">2<\/td><td data-before=\"ELEMENT\">B<\/td><td data-before=\"\">18<\/td><td data-before=\"ELEMENT\">Ba<\/td><td data-before=\"\">56<\/tr><tr>\n<td data-before=\"ELEMENT\">Be<\/td><td data-before=\"\">1<\/td><td data-before=\"ELEMENT\">Co<\/td><td data-before=\"\">1<\/td><td data-before=\"ELEMENT\">Cr<\/td><td data-before=\"\">10<\/td><td data-before=\"ELEMENT\">Cu<\/td><td data-before=\"\">1<\/tr><tr>\n<td data-before=\"ELEMENT\">Fe<\/td><td data-before=\"\">100<\/td><td data-before=\"ELEMENT\">La<\/td><td data-before=\"\">32<\/td><td data-before=\"ELEMENT\">Li<\/td><td data-before=\"\">32<\/td><td data-before=\"ELEMENT\">Mo<\/td><td data-before=\"\">1<\/tr><tr>\n<td data-before=\"ELEMENT\">Mn<\/td><td data-before=\"\">10<\/td><td data-before=\"ELEMENT\">Nb<\/td><td data-before=\"\">10<\/td><td data-before=\"ELEMENT\">Ni<\/td><td data-before=\"\">1<\/td><td data-before=\"ELEMENT\">Pb<\/td><td data-before=\"\">3<\/tr><tr>\n<td data-before=\"ELEMENT\">Sn<\/td><td data-before=\"\">3<\/td><td data-before=\"ELEMENT\">Sr<\/td><td data-before=\"\">10<\/td><td data-before=\"ELEMENT\">U<\/td><td data-before=\"\">0.5<\/td><td data-before=\"ELEMENT\">Y<\/td><td data-before=\"\">10<\/tr><tr>\n<td data-before=\"ELEMENT\">Zn<\/td><td data-before=\"\">1<\/td><td data-before=\"ELEMENT\">Zr<\/td><td data-before=\"\">100<\/td><td data-before=\"ELEMENT\">LOI<\/td><td data-before=\"\">0.1%<\/td><td data-before=\"ELEMENT\"><\/td><td data-before=\"\"><\/tbody>\n<\/table><\/div>\n<p>Absent data are indicated by -1.<\/p>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div><div  class=\"accordions\">\n\t\t\t\t<div class=\"acc-wrap\">\n\t\t\t\t\t<button class=\"acc-top secondary-background icon-arrow button no-btn\"><span class=\"button-content\" tabindex=\"-1\">Grid co-ordinates<\/span><\/button>\n\t\t\t\t\t<div class=\"acc-body sea-background-e\">\n\t\t\t\t\t\t<p>All samples have UTM grid co-ordinates (UTM Zones 20 and 21) and have been standardised on the UTM Zone 20. The standardised data x\/y co-ordinates are presented in the database as x and y.<\/p>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div><div  class=\"accordions\">\n\t\t\t\t<div class=\"acc-wrap\">\n\t\t\t\t\t<button class=\"acc-top secondary-background icon-arrow button no-btn\"><span class=\"button-content\" tabindex=\"-1\">Summary information<\/span><\/button>\n\t\t\t\t\t<div class=\"acc-body sea-background-e\">\n\t\t\t\t\t\t<div class=\"col-12 responsive-table\"><table>\n<tbody>\n<tr>\n<td><strong>Excel filename<\/strong><\/td>\n<td>EBOLIVIA.XLS<\/td>\n<\/tr>\n<tr>\n<td><strong>CSV filename<\/strong><\/td>\n<td>EBOLIVIA.CSV<\/td>\n<\/tr>\n<tr>\n<td><strong>DBF filename<\/strong><\/td>\n<td>EBOLIVIA.DBF<\/td>\n<\/tr>\n<tr>\n<td><strong>Minimum Easting (x) (UTM20)<\/strong><\/td>\n<td>367800 Long. -64.3\u00b0<\/td>\n<\/tr>\n<tr>\n<td><strong>Maximum Easting (x) (UTM20)<\/strong><\/td>\n<td>1079300 Long. -57.7\u00b0<\/td>\n<\/tr>\n<tr>\n<td><strong>Minimum Northing (y) (UTM20)<\/strong><\/td>\n<td>7967100 Lat. -18.4\u00b0<\/td>\n<\/tr>\n<tr>\n<td><strong>Maximum Northing (y) (UTM20)<\/strong><\/td>\n<td>8624100 Lat.- 12.4\u00b0<\/td>\n<\/tr>\n<tr>\n<td><strong>Number of sites<\/strong><\/td>\n<td>8132 (6912 sedts and 1220 soils)<\/td>\n<\/tr>\n<tr>\n<td><strong>Average corrected sampling density<\/strong><\/td>\n<td>1 per 16 km\u00b2<\/td>\n<\/tr>\n<tr>\n<td><strong>Fraction used<\/strong><\/td>\n<td>-150 micron<\/td>\n<\/tr>\n<tr>\n<td><strong>Elements by AAS (hot nitric acid extraction)<\/strong><\/td>\n<td>Ag, Co, Cu, Fe, Mn, Ni, Pb, Zn<\/td>\n<\/tr>\n<tr>\n<td><strong>Elements determined colorimetrically (Gutzeit method)<\/strong><\/td>\n<td>As<\/td>\n<\/tr>\n<tr>\n<td><strong>Elements determined by Delayed Neutron Activation (DNA)<\/strong><\/td>\n<td>U<\/td>\n<\/tr>\n<tr>\n<td><strong>Elements by Optical Emission Spectroscopy (OES)<\/strong><\/td>\n<td>B, Ba, Be, Cr, La, Li, Mo, Nb, Sn, Sr, Y, Zr<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div><div  class=\"accordions\">\n\t\t\t\t<div class=\"acc-wrap\">\n\t\t\t\t\t<button class=\"acc-top secondary-background icon-arrow button no-btn\"><span class=\"button-content\" tabindex=\"-1\">References and publications<\/span><\/button>\n\t\t\t\t\t<div class=\"acc-body sea-background-e\">\n\t\t\t\t\t\t<p>Reference to the CD-ROM should be as follows:<\/p>\n<p>BGS (2007). Bolivia Regional Geochemical Survey CD-ROM: Proyecto Prec\u00e0mbrico &#8211; Eastern Bolivia. Version 2.0. BGS International Regional Geochemistry CD-ROM Series, No. 3 Bolivia. British Geological Survey, Keyworth, Nottingham, UK<\/p>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div><div  class=\"accordions\">\n\t\t\t\t<div class=\"acc-wrap\">\n\t\t\t\t\t<button class=\"acc-top secondary-background icon-arrow button no-btn\"><span class=\"button-content\" tabindex=\"-1\">Contact information<\/span><\/button>\n\t\t\t\t\t<div class=\"acc-body sea-background-e\">\n\t\t\t\t\t\t<p><strong>BGS work in Bolivia<\/strong><\/p>\n<p>Central enquiries<br \/>\nBritish Geological Survey<br \/>\nKeyworth Nottingham NG12 5GG<br \/>\nUnited Kingdom<br \/>\nTel: +44 (0)115 936 3143<br \/>\nFax: +44 (0)115 939 3276 Email: <a href=\"mailto:enquiries@bgs.ac.uk\">enquiries@bgs.ac.uk<\/a><\/p>\n<p><strong>Collaborating organisation: Bolivian Geological Survey<\/strong><\/p>\n<p>Director Ejecutivo<br \/>\nServicio Nacional de Geolog\u00e0\u00ada y Miner\u00e0\u00ada SerGeoMin<br \/>\nCalle Federico Zuazo 1673, Esquina Reyes Ortiz,<br \/>\nLa Paz, Bolivia<br \/>\nTel. (591-2) 2311373<\/p>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div><div  class=\"accordions\">\n\t\t\t\t<div class=\"acc-wrap\">\n\t\t\t\t\t<button class=\"acc-top secondary-background icon-arrow button no-btn\"><span class=\"button-content\" tabindex=\"-1\">Bolivia contents of the CD-ROM<\/span><\/button>\n\t\t\t\t\t<div class=\"acc-body sea-background-e\">\n\t\t\t\t\t\t<div class=\"col-12 responsive-table\"><table>\n<tbody>\n<tr>\n<td><strong><em>readme.doc<\/em><\/strong><\/td>\n<td>Information file (in MS Word 2003 format)<\/td>\n<\/tr>\n<tr>\n<td><strong><em>readme.pdf<\/em><\/strong><\/td>\n<td>Information file (in PDF format)<\/td>\n<\/tr>\n<tr>\n<td><strong><em>ebolivia.csv<\/em><\/strong><\/td>\n<td>Geochemical results and locational data for stream sediments and soils in comma separated variable format, first row contains field names<\/td>\n<\/tr>\n<tr>\n<td><strong><em>ebolivia.xls<\/em><\/strong><\/td>\n<td>Geochemical results and locational data for stream sediments and soils in MS Excel 2003 format, first row contains field names<\/td>\n<\/tr>\n<tr>\n<td><strong><em>ebolivia.dbf<\/em><\/strong><\/td>\n<td>Geochemical results and locational data for stream sediments and soils in dBase III+ format<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div><\/div><\/div><\/div><\/section>\n\n\n<section class=\"cta-section  rock-background-d \">\n\t<div class=\"container\">\n\t\t<div class=\"row md-row\">\n\t\t\t<div class=\"col-12\">\n\t\t\t\t<h2>Purchase information<\/h2>\t\t\t\t\t\t\t\t<div class=\"btn-wrap\"><a href=\"https:\/\/shop.bgs.ac.uk\/Shop\/Product\/BSP_ORGDBOL\"  target=\"_blank\" class=\"button primary-background button btn-icon-arrow-right-white before \">Buy online<\/a><\/div>\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\t\n\n\n\n\t\t\t\t\t<section   id=\"latest-content-3162-block_5e7b0d7d9c15e\" class=\"grid-section  primary-background   \" >\n\t\t\t\t\t\t<div class=\"container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"row header-of-section\">\n\t\t\t\t\t\t\t\t<div class=\"col-12\">\n\t\t\t\t\t\t\t\t\t<h2>You may also be interested in:<\/h2>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"row grid-wrap\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"col-lg-6 col-12\">\n\t<div class=\"cards cards-orizontal-sm  cards-find-more  cards-bordered\">\n\t\t\t\t<a href=\"https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/\" class=\"media-wrap\">\n\t\t\t<img decoding=\"async\" src=\"https:\/\/www.bgs.ac.uk\/wp-content\/uploads\/2020\/05\/P514969-150x150.jpg\" class=\"lazy-blur wp-post-image\" alt=\"P514969\" data-src=\"https:\/\/www.bgs.ac.uk\/wp-content\/uploads\/2020\/05\/P514969.jpg\" \/>\t\t\t\t\t<\/a>\n\t\t\t\t<div class=\"info-wrap\">\n\t\t\t<div class=\"info\">\n\t\t\t\t<h4><a href=\"https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/\">Applied geochemistry<\/a><\/h4>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p>Since the 1960s, the BGS has amassed considerable geochemical data holdings and developed significant expertise in applied geochemistry.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<a href=\"https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/\">Show more<\/a>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<div class=\"col-lg-6 col-12\">\n\t<div class=\"cards cards-orizontal-sm  cards-find-more  cards-bordered\">\n\t\t\t\t<div class=\"info-wrap\">\n\t\t\t<div class=\"info\">\n\t\t\t\t<h4><a href=\"https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/\">International geochemistry CD-ROM series<\/a><\/h4>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p>Regional geochemical data from a range of overseas countries are available on a series of CD-ROMS.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<a href=\"https:\/\/www.bgs.ac.uk\/geology-projects\/applied-geochemistry\/international-geochemistry-cd-rom\/\">Show more<\/a>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"row\">\n\t\t\t\t\t\t\t\t<div class=\"col-12\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\t\t","protected":false},"excerpt":{"rendered":"<p>Between 1976 and 1982, the Overseas Directorate of BGS, United Kingdom and the Geological Survey of Bolivia, Santa Cruz, carried out a major reconnaissance geological mapping, geochemical sampling and mineral exploration programme of that part of the Precambrian Brazilian Shield lying within eastern Bolivia.<\/p>\n","protected":false},"featured_media":0,"parent":35500,"menu_order":2,"template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":""},"tags":[],"region":[],"topic":[],"purpose":[],"area":[],"challenge":[],"challenge_topic":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bolivia Regional Geochemical Survey - British Geological Survey<\/title>\n<meta name=\"description\" content=\"Between 1976 and 1982, BGS and the Geological Survey of Bolivia, carried out a major programme of part of the Precambrian Brazilian 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