شاركنا تاريخ ميلادك!
تاريخ الميلاد
تاريخ الميلاد المدخل غير مكتمل يرجى ادخال تاريخ ميلاد صحيح
×
Geochemical Results of a Hydrothermally Altered Area at Baker Creek, Blaine County, Idaho: Usgs Bulletin 2064-Gg by James A. Erdman, Falma J. Moye, Et Al - Paperback
60.90 درهم

Geochemical Results of a Hydrothermally Altered Area at Baker Creek, Blaine County, Idaho: Usgs Bulletin 2064-Gg by James A. Erdman, Falma J. Moye, Et Al - Paperback

كن أول من يقيِّم هذا المنتج 

60.90 درهم 

  - ستوفر -60.90 درهم
الأسعار تشمل ضريبة القيمة المضافة  التفاصيل
رقم ال ISBN
9781288890033
الفئات
سياسة
الكاتب
James A. Erdman, Falma J. Moye, Et Al
الناشر
Bibliogov
الوصف:

The area immediately east of Baker Creek, Blaine County, Idaho, is underlain by a thick section of mafic to intermediate lava flows of the Eocene Challis Volcanic Group. Widespread propylitic alteration surrounds a zone of argillic alteration and an inner core of phyllic alteration. Silicified breccia is present along an east-trending fault within the zone of phyllic alteration. As part of ...

تشحن من الولايات المتحدة
اشحن الى دبي (تغيير المدينة)
التوصيل خلال الأربعاء ٢٩ أغسطس - الجمعة ٣١ أغسطس الي دبي

حالة السلعة:
جديدة
البائع:
InternationalBookStore (87% تقييم ايجابي)

معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781288890033
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354845817
    المؤلفين
    الكاتب
    James A. Erdman, Falma J. Moye, Et Al
    المؤلفين
    الناشر
    Bibliogov
    رقم ال ISBN
    9781288890033
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354845817
    المؤلفين
    الكاتب
    James A. Erdman, Falma J. Moye, Et Al
    المؤلفين
    الناشر
    Bibliogov
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
  •  

    الوصف:

    The area immediately east of Baker Creek, Blaine County, Idaho, is underlain by a thick section of mafic to intermediate lava flows of the Eocene Challis Volcanic Group. Widespread propylitic alteration surrounds a zone of argillic alteration and an inner core of phyllic alteration. Silicified

    The area immediately east of Baker Creek, Blaine County, Idaho, is underlain by a thick section of mafic to intermediate lava flows of the Eocene Challis Volcanic Group. Widespread propylitic alteration surrounds a zone of argillic alteration and an inner core of phyllic alteration. Silicified breccia is present along an east-trending fault within the zone of phyllic alteration. As part of a reconnaissance geochemical survey, soils and plants were sampled. Several species of plants (Douglas-fir! Pseudotsuga menziesii ], mountain big sagebrush! Artemisia tridentata ssp. vaseyana ], and elk sedge! Carex geyerii ]) were collected from 10 upland localities and stream sediments, panned concentrates, and aquatic mosses were collected from 16 drainage basin localities all of which were generally within the area of alteration. Geochemical results yielded anomalous concentrations of molybenum, zinc, silver, and lead in at least half of the seven different sample media and of gold, thallium, arsenic, antimony, manganese, boron, cadmium, bismuth, copper, and beryllium in from one to four of the various media. Part of this suite of elements? silver, gold, arsenic, antimony, thallium, and manganese? suggests that the mineralization in the area is epithermal. Barite and pyrite (commonly botryoidal-framboidal) are widespread throughout the area sampled. Visible gold and pyromorphite (a secondary lead mineral) were identified in only one small drainage basin, but high levels of gold were detected in aquatic mosses over a larger area. Data from the upland and stream sampling indicate two possible mineralized areas. The first mineralized area was identified by a grab sample from an outcrop of quartz stockwork that contained 50 ppb Au, 1.5 ppm Ag, and 50 ppm Mo. Although the soil and plant species that were sampled in the area indicated mineralized bedrock, the Douglas-fir samples were the best indicators of the silver anomaly. The second possible mineralized area centers on the fault-controlled silicified breccia that is most likely the source of anomalous silver and molybdenum levels identified in the soils; silver, molybdenum, and manganese in stream sediments; thallium in Douglas-fir; bismuth and silver in concentrates; and gold, silver, arsenic, antimony, and molybdenum and lead in aquatic mosses. An interpretation of regional aeromagnetic data delineated the subsurface extent of shallow, steeply dipping magnetic sources inferred to be shallower parts of an Eocene batholith thought to underlie much of the Baker Creek area. The Eocene intrusive event(s) may have served as the heat source(s) that caused the hydrothermal alteration. Examination of core from a 1,530-ft-deep (466 m) hole drilled in 1982 confirmed a bedrock source for the anomalous silver and base-metal suite at the quartz stockwork location, and indicated subeconomic levels of molybdenum.

    خصائص المنتج:
    • الفئات: سياسة
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: James A. Erdman, Falma J. Moye, Et Al
    • الناشر: Bibliogov
    • رقم ال ISBN: 9781288890033
    • عدد الصفحات: 28
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.06 inches
 

تقييمات المستخدمين

0
لا يوجد تقييمات بعد
كن أول من يقيِّم هذا المنتج
قيِّم هذا المنتج:

إعلانات مُموَّلة لك

×

الرجاء تأكيد رقم هاتفك الجوال لإكمال عملية الشراء

سنقوم بإرسال رسالة نصية تحتوي على رمز التفعيل، الرجاء التأكد من رقم هاتفك الجوال ادناه، ثم انقر على زر "أرسل رمز التفعيل".