Кіріспе
Уранды ботаникалық іздеу – уран кен орындарын жер бетінде өсіп жатқан өсімдіктерді байқау арқылы немесе геоботаникалық іздеу деп аталатын процесте өсімдік материалының геохимиялық талдауын жүргізу арқылы табу әдісі. Уранды іздеу тарихында, әсіресе Солтүстік Американың Колорадо үстіртінде, кен орындарын анықтау үшін бірнеше әдіс қолданылған. Радиацияны анықтағыштардың, мысалы, Гайгер санағыштары мен сцинтилляциялық санағыштардың қолданылуы – осы әдістердің бірі. Тағы бір кеңінен қолданылатын әдіс – аймақтың геологиялық тарихын білу, мысалы, кен орнына ие болатын геологиялық құрылымды анықтау. АҚШ
During the early efforts to locate uranium deposits in the United States, the U. S. Geological Survey conducted studies of prospecting through botanical surveys. These studies examined three methods. Each method begins with the identification of an area of interest. This area is then gridded off, which allows the prospector to map samples to specific locations on the ground. Plant morphology variations
The first method, not widely used in the Colorado Plateau, looks for physiologic and morphologic changes in plants growing in or around ore bodies. A survey of plants in the gridded area is conducted. Comparison of normal growth habits and rates is done with known normal plants, and areas with high rates of change in either physiology or morphology indicate likely spots for further prospecting. This method is time consuming, and is not useful in all areas. Deep rooted plants
The second method uses a survey of deep rooted plants in an area of interest. This works because the plant roots carry uranium to the surface, where it is concentrated in growing areas of the plant. Juniper or saltbrush are usually used, as they are known uranium concentrators. Samples of tree branch tips and leaves are taken from each area in the grid. These samples are then sent to a laboratory for analysis. Concentrations of more than 1 part in a million (> 1 ppm) of uranium indicate likely areas to investigate further, through drilling or digging. This method provides information about likely ore bodies down to a depth of between 50 and 70 feet, and is generally good in areas where mineralized beds form broad flat benches, so that a grid pattern can be used. Indicator plant species
The third method looks for concentrations of indicator plant species in an area of interest. Some uranium ore bodies contain higher concentrations of certain elements, such as selenium, than the surrounding host rock in which they are found. Certain plants that concentrate these elements act as indicator species for likely ore body locations. Mapping these plants provides information about areas in which further prospecting should be done. For example, in areas such as the Colorado Plateau, various species of Astragalus are selenium concentrators (A. pattersoni, A. preussi, A. thompsonae). Other indicator plants for sulfur and calcium, such as Eriogonum inflatum and Oenothera caespitosa'' help to identify likely areas also, especially in conjunction with the selenium indicators.
АҚШ-та уран кен орындарын табу бойынша жасалған алғашқы күш-жігер кезінде АҚШ Геологиялық қызметі ботаникалық зерттеулер арқылы іздеу жұмыстарын жүргізді. Бұл зерттеулер үш әдіспен айналысты. Әрбір әдіс қызығушылық тудыратын аймақты анықтаудан басталады. Содан кейін бұл аймақ торға бөлінеді, бұл іздеушіге үлгілерді жердегі нақты орналасқан жерлерге картаға түсіруге мүмкіндік береді. Өсімдік морфологиясының өзгеруі
During the early efforts to locate uranium deposits in the United States, the U. S. Geological Survey conducted studies of prospecting through botanical surveys. These studies examined three methods. Each method begins with the identification of an area of interest. This area is then gridded off, which allows the prospector to map samples to specific locations on the ground. Plant morphology variations
The first method, not widely used in the Colorado Plateau, looks for physiologic and morphologic changes in plants growing in or around ore bodies. A survey of plants in the gridded area is conducted. Comparison of normal growth habits and rates is done with known normal plants, and areas with high rates of change in either physiology or morphology indicate likely spots for further prospecting. This method is time consuming, and is not useful in all areas. Deep rooted plants
The second method uses a survey of deep rooted plants in an area of interest. This works because the plant roots carry uranium to the surface, where it is concentrated in growing areas of the plant. Juniper or saltbrush are usually used, as they are known uranium concentrators. Samples of tree branch tips and leaves are taken from each area in the grid. These samples are then sent to a laboratory for analysis. Concentrations of more than 1 part in a million (> 1 ppm) of uranium indicate likely areas to investigate further, through drilling or digging. This method provides information about likely ore bodies down to a depth of between 50 and 70 feet, and is generally good in areas where mineralized beds form broad flat benches, so that a grid pattern can be used. Indicator plant species
The third method looks for concentrations of indicator plant species in an area of interest. Some uranium ore bodies contain higher concentrations of certain elements, such as selenium, than the surrounding host rock in which they are found. Certain plants that concentrate these elements act as indicator species for likely ore body locations. Mapping these plants provides information about areas in which further prospecting should be done. For example, in areas such as the Colorado Plateau, various species of Astragalus are selenium concentrators (A. pattersoni, A. preussi, A. thompsonae). Other indicator plants for sulfur and calcium, such as Eriogonum inflatum and Oenothera caespitosa'' help to identify likely areas also, especially in conjunction with the selenium indicators.
Колорадо үстіртінде кеңінен қолданылмаған бірінші әдіс кен денесінің ішінде немесе оның маңында өсетін өсімдіктердің физиологиялық және морфологиялық өзгерістерін қарастырады. Торлы аймақтағы өсімдіктерді зерттеу жүргізіледі. Қалыпты өсу әдеттері мен қарқындары белгілі қалыпты өсімдіктермен салыстырылады, ал физиологиясы немесе морфологиясы жоғары өзгерген аймақтар одан әрі іздеу үшін ықтимал жерлерді көрсетеді. Бұл әдіс көп уақытты алады және барлық аймақтарда пайдалы емес. Тераң тамырлы өсімдіктер
During the early efforts to locate uranium deposits in the United States, the U. S. Geological Survey conducted studies of prospecting through botanical surveys. These studies examined three methods. Each method begins with the identification of an area of interest. This area is then gridded off, which allows the prospector to map samples to specific locations on the ground. Plant morphology variations
The first method, not widely used in the Colorado Plateau, looks for physiologic and morphologic changes in plants growing in or around ore bodies. A survey of plants in the gridded area is conducted. Comparison of normal growth habits and rates is done with known normal plants, and areas with high rates of change in either physiology or morphology indicate likely spots for further prospecting. This method is time consuming, and is not useful in all areas. Deep rooted plants
The second method uses a survey of deep rooted plants in an area of interest. This works because the plant roots carry uranium to the surface, where it is concentrated in growing areas of the plant. Juniper or saltbrush are usually used, as they are known uranium concentrators. Samples of tree branch tips and leaves are taken from each area in the grid. These samples are then sent to a laboratory for analysis. Concentrations of more than 1 part in a million (> 1 ppm) of uranium indicate likely areas to investigate further, through drilling or digging. This method provides information about likely ore bodies down to a depth of between 50 and 70 feet, and is generally good in areas where mineralized beds form broad flat benches, so that a grid pattern can be used. Indicator plant species
The third method looks for concentrations of indicator plant species in an area of interest. Some uranium ore bodies contain higher concentrations of certain elements, such as selenium, than the surrounding host rock in which they are found. Certain plants that concentrate these elements act as indicator species for likely ore body locations. Mapping these plants provides information about areas in which further prospecting should be done. For example, in areas such as the Colorado Plateau, various species of Astragalus are selenium concentrators (A. pattersoni, A. preussi, A. thompsonae). Other indicator plants for sulfur and calcium, such as Eriogonum inflatum and Oenothera caespitosa'' help to identify likely areas also, especially in conjunction with the selenium indicators.
Екінші әдіс қызығушылық тудыратын аймақтағы терең тамырлы өсімдіктерді зерттеуді пайдаланады. Бұл әдіс жұмыс істейді, себебі өсімдік тамырлары уранды жер бетіне жеткізеді, онда ол өсімдіктің өсу аймақтарында шоғырланады. Жәндік немесе тұз қылқандары әдетте уранды шоғырландырғыштар ретінде қолданылады. Тордағы әрбір аймақтан ағаш бұтақтарының ұштары мен жапырақтарынан үлгілер алынады. Бұл үлгілер талдау үшін зертханаға жіберіледі. Уранның миллионнан бір бөлігінен жоғары (> 1 ppm) концентрациясы бұрғылау немесе қазу арқылы одан әрі зерттеуге болатын аймақтарды көрсетеді. Бұл әдіс кен денесінің 50-70 фут тереңдікке дейінгі мүмкіндігі туралы ақпарат береді және әдетте минералды төсектер кең, жазық жазықтықтар құрайтын аймақтарда жақсы, сондықтан тор үлгісін қолдануға болады. Көрсеткіш өсімдік түрлері
During the early efforts to locate uranium deposits in the United States, the U. S. Geological Survey conducted studies of prospecting through botanical surveys. These studies examined three methods. Each method begins with the identification of an area of interest. This area is then gridded off, which allows the prospector to map samples to specific locations on the ground. Plant morphology variations
The first method, not widely used in the Colorado Plateau, looks for physiologic and morphologic changes in plants growing in or around ore bodies. A survey of plants in the gridded area is conducted. Comparison of normal growth habits and rates is done with known normal plants, and areas with high rates of change in either physiology or morphology indicate likely spots for further prospecting. This method is time consuming, and is not useful in all areas. Deep rooted plants
The second method uses a survey of deep rooted plants in an area of interest. This works because the plant roots carry uranium to the surface, where it is concentrated in growing areas of the plant. Juniper or saltbrush are usually used, as they are known uranium concentrators. Samples of tree branch tips and leaves are taken from each area in the grid. These samples are then sent to a laboratory for analysis. Concentrations of more than 1 part in a million (> 1 ppm) of uranium indicate likely areas to investigate further, through drilling or digging. This method provides information about likely ore bodies down to a depth of between 50 and 70 feet, and is generally good in areas where mineralized beds form broad flat benches, so that a grid pattern can be used. Indicator plant species
The third method looks for concentrations of indicator plant species in an area of interest. Some uranium ore bodies contain higher concentrations of certain elements, such as selenium, than the surrounding host rock in which they are found. Certain plants that concentrate these elements act as indicator species for likely ore body locations. Mapping these plants provides information about areas in which further prospecting should be done. For example, in areas such as the Colorado Plateau, various species of Astragalus are selenium concentrators (A. pattersoni, A. preussi, A. thompsonae). Other indicator plants for sulfur and calcium, such as Eriogonum inflatum and Oenothera caespitosa'' help to identify likely areas also, especially in conjunction with the selenium indicators.
Үшінші әдіс қызығушылық тудыратын аймақтағы көрсеткіш өсімдік түрлерінің шоғырлануын анықтауға бағытталған. Кейбір уран кендерінің құрамында селен сияқты кейбір элементтердің концентрациясы оларды қоршап тұрған тасқа қарағанда жоғары болады. Осы элементтерді шоғырландыратын кейбір өсімдіктер кен денесінің ықтимал орналасқан жері үшін көрсеткіш түрлер ретінде қызмет етеді. Бұл өсімдіктерді картаға түсіру арқылы одан әрі іздеу жұмыстарын жүргізуге тиіс аймақтар туралы ақпарат алуға болады. Мысалы, Колорадо үстірті сияқты аймақтарда Астрагал тұқымдасының әртүрлі түрлері селенді шоғырландырады (A. pattersoni, A. preussi, A. thompsonae). Күкірт пен кальцийдің басқа көрсеткіш өсімдіктері, мысалы, Eriogonum inflatum және Oenothera caespitosa, әсіресе селен көрсеткіштерімен бірге, ықтимал аймақтарды анықтауға көмектеседі.
During the early efforts to locate uranium deposits in the United States, the U. S. Geological Survey conducted studies of prospecting through botanical surveys. These studies examined three methods. Each method begins with the identification of an area of interest. This area is then gridded off, which allows the prospector to map samples to specific locations on the ground. Plant morphology variations
The first method, not widely used in the Colorado Plateau, looks for physiologic and morphologic changes in plants growing in or around ore bodies. A survey of plants in the gridded area is conducted. Comparison of normal growth habits and rates is done with known normal plants, and areas with high rates of change in either physiology or morphology indicate likely spots for further prospecting. This method is time consuming, and is not useful in all areas. Deep rooted plants
The second method uses a survey of deep rooted plants in an area of interest. This works because the plant roots carry uranium to the surface, where it is concentrated in growing areas of the plant. Juniper or saltbrush are usually used, as they are known uranium concentrators. Samples of tree branch tips and leaves are taken from each area in the grid. These samples are then sent to a laboratory for analysis. Concentrations of more than 1 part in a million (> 1 ppm) of uranium indicate likely areas to investigate further, through drilling or digging. This method provides information about likely ore bodies down to a depth of between 50 and 70 feet, and is generally good in areas where mineralized beds form broad flat benches, so that a grid pattern can be used. Indicator plant species
The third method looks for concentrations of indicator plant species in an area of interest. Some uranium ore bodies contain higher concentrations of certain elements, such as selenium, than the surrounding host rock in which they are found. Certain plants that concentrate these elements act as indicator species for likely ore body locations. Mapping these plants provides information about areas in which further prospecting should be done. For example, in areas such as the Colorado Plateau, various species of Astragalus are selenium concentrators (A. pattersoni, A. preussi, A. thompsonae). Other indicator plants for sulfur and calcium, such as Eriogonum inflatum and Oenothera caespitosa'' help to identify likely areas also, especially in conjunction with the selenium indicators.
Басқа өңірлер
Колорадо жазығынан тыс аймақтарда, мысалы Оңтүстік Австралияда немесе Канаданың Саскачеван провинциясында, басқа өсімдіктер табиғатта кездесіп, қолданылуы мүмкін.