dor_id: 4132104

506.#.#.a: Público

590.#.#.d: Los artículos enviados a la revista "Geofísica Internacional", se juzgan por medio de un proceso de revisión por pares

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Scientific Electronic Library Online (SciELO); SCOPUS, Dialnet, Directory of Open Access Journals (DOAJ); Geobase

561.#.#.u: https://www.geofisica.unam.mx/

650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: http://revistagi.geofisica.unam.mx/index.php/RGI

351.#.#.b: Geofísica Internacional

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: https://revistas.unam.mx/catalogo/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1531/1652

100.1.#.a: Del Castillo, Luis

524.#.#.a: Del Castillo, Luis (1972). Magnetic investigation in the vicinity of Derby, Adams County, Colorado, U.S.A.. Geofísica Internacional; Vol. 12 Núm. 1: Enero 1, 1972; 23-53. Recuperado de https://repositorio.unam.mx/contenidos/4132104

245.1.0.a: Magnetic investigation in the vicinity of Derby, Adams County, Colorado, U.S.A.

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1972

264.#.1.c: 1972-01-01

653.#.#.a: Magnetismo; Anomalías magnéticas; Levantamiento aeromagnético; U.S.A.; Condado de Adams, Colorado; Magnetism; magnetic anomalies; Aeromagnetic survey; Adams County, Colorado

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx

884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1531

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1531

041.#.7.h: spa

520.3.#.a: During the summer and fall of 1967, vertical magnetite· intensity surveys were conducted in two areas adjacent to the Rocky Mountain Arsenal well No .1, northeast of Denver, Adams County, Colorado. The surveys are described as the Manila and Eastlake areas, both of which are covered with alluvium material; the age of the underlying rocks ranges from Precambrian to Cenozoic; the buried basement metamorphic rocks are assumed to be complexly folded and faulted. The depth of the basement rocks, based on the stratigraphic logs of Arsenal well No. 1, was used as a basis for quantitative calculations of the magnetic anomalies in the areas, but the interpretation of magnetic data was difficult because of lack of sufficient drill-hole information and of variation of basement rock magnetic properties.There is no magnetic evidence of major vertical fault displacements in the two areas; hence, the only faults in the Eastlake arc that could possibly cause tremors are the horizontal slide-strike, faults accompanied by minor vertical displacements. Amplitudes of computed and observed anomalies in both areas are in agreement at a basement depth of 11,500 to 13,000 feet. The interpretation so arrived al in the Manila area could be objectionable, but the vertical ground-magnetic patterns arc in accordance to the general aeromagnetic patterns.The steep magnetic gradient at the Eastlake area is probably due to a magnetic susceptibility contrast of about 1,350 x 10-₆ cgs, unit between a 4-mile block of sheared rock and amphiobolitic gneisses. This rock interface may be the eastern extension of the east-west striking formations which crop out on the Front Range to the west. The causes of magnetic anomalies in the Denver basin arc varied, therefore extension of the results lo other areas in the same basin is not possible.

773.1.#.t: Geofísica Internacional; Vol. 12 Núm. 1: Enero 1, 1972; 23-53

773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI

022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169

310.#.#.a: Trimestral

300.#.#.a: Páginas: 23-53

264.#.1.b: Instituto de Geofísica, UNAM

doi: https://doi.org/10.22201/igeof.00167169p.1972.12.1.990

handle: 2b47ca4f3c1e76c7

harvesting_date: 2023-06-20 16:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2008-07-01 18:49:05.0

file_modification_date: 2023-02-07 22:46:22.0

file_creator: Luis Del Castillo

file_name: dafb1048b314121b0f8d3b78b88252dff103faf56a18d5561d82e8b76bee0ae0.pdf

file_pages_number: 31

file_format_version: application/pdf; version=1.6

file_size: 12195466

245.1.0.b: Magnetic investigation in the vicinity of Derby, Adams County, Colorado, U.S.A.

last_modified: 2023-06-20 16:00:00

license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es

license_type: by-nc-sa

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