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western Nicaragua

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Journal Article
Published: 01 June 1966
Journal of Sedimentary Research (1966) 36 (2): 522–540.
...Frederick M. Swain Abstract Studies involving water temperature, water composition, hydrogen ion concentration, oxidation-reduction potentials, oxygen content, fauna and flora were made of Lakes Nicaragua and Managua that lie within a graben in the volcanic region of western Nicaragua. Bottom...
Journal Article
Published: 01 March 1967
Journal of Paleontology (1967) 41 (2): 306–334.
Image
(A) Regional map of the western Nicaragua Rise showing crustal provinces in the study area and (B) table summarizing locations and rock types described in outcrops and wells in Nicaragua that include metamorphic rocks (true basement), exhumed intrusive igneous rocks, and interbedded volcanic and sedimentary rocks commonly associated with the imaging limit of the seismic reflection lines.
Published: 15 August 2019
Figure 3. (A) Regional map of the western Nicaragua Rise showing crustal provinces in the study area and (B) table summarizing locations and rock types described in outcrops and wells in Nicaragua that include metamorphic rocks (true basement), exhumed intrusive igneous rocks, and interbedded
Book Chapter

Author(s)
John B. Thigpen
Series: AAPG Memoir
Published: 01 January 1976
EISBN: 9781629812113
... Abstract A geothermal exploration project was conducted in 1969–70 over an area of about 38,000 km 2 in the Cenozoic volcanic zone of western Nicaragua (Fig. 1). The project included a regional geological and geochemical evaluation of the geothermal potential of the area and more detailed...
Journal Article
Journal: Economic Geology
Published: 01 August 1991
Economic Geology (1991) 86 (5): 944–959.
... influence can be detected in the volcanic rocks in central and western Nicaragua. The isotopic composition of the volcanic rocks in Nicaragua is thus a function of two ultimate sources: ocean floor basalts and pre-Mesozoic continental crust.Three groups of gold-bearing quartz veins have been distinguished...
Journal Article
Journal: GSA Bulletin
Published: 01 November 2009
GSA Bulletin (2009) 121 (11-12): 1491–1521.
... focus area of the U.S. National Science “Margins” program, ~1925 km of shallow geophysical data were acquired over Lakes Nicaragua and Managua in May 2006 to establish their late Quaternary structural and stratigraphic history and to better constrain regional models for active tectonics in western...
FIGURES | View All (23)
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 February 2011
Lithosphere (2011) 3 (1): 3–21.
... to describe the motions of the Salvadoran and Nicaraguan forearcs and determine the location and style of faulting across the Gulf of Fonseca offset of the volcanic arcs of eastern El Salvador and western Nicaragua. Finite-element modeling of GPS measurements at 35 sites in El Salvador, southern Honduras...
FIGURES | View All (12)
Journal Article
Journal: GSA Bulletin
Published: 01 January 1977
GSA Bulletin (1977) 88 (1): 151–156.
... American earthquakes occurred in two brief space-time progressions. During 1847–1851 great earthquakes ruptured the El Salvador, eastern Nicaragua, and two Costa Rican segments of the arc. During 1898–1902, the western Nicaragua segment, the three Guatemalan segments, and a segment in southeast Mexico were...
... to the magma sources. If enrichments of both B and 10 Be are proportional to the flux of subducted sediment, along-strike variations in B/La suggest at least a twofold variation in this flux with maximum values below western Nicaragua and minimum values below Costa Rica and western Panama where the Cocos...
Published: 01 January 2006
DOI: 10.1130/2006.2412(10)
... The youngest highly explosive basaltic eruptions from Masaya Caldera in central western Nicaragua produced five main pyroclastic deposits: the San Antonio Tephra, La Concepción Tephra, the Masaya Triple Layer, and the Masaya Tuff with the Ti cuan-te pe Lapilli. This tephra sequence...
Image
Figure 1. A: Location map of Nicaragua and study area. B: Digital elevation model of western Nicaragua with focal mechanisms of historical strike-slip earthquakes from Molnar and Sykes (1969), White (1991), and Harvard centroid moment tensor catalog. Stars mark locations of destructive earthquakes (White and Harlow, 1993). Numbers located next to focal mechanisms and stars are dates of events given in month-day-year notation. ES—El Salvador; CR—Costa Rica.
Published: 01 August 2002
Figure 1. A: Location map of Nicaragua and study area. B: Digital elevation model of western Nicaragua with focal mechanisms of historical strike-slip earthquakes from Molnar and Sykes (1969) , White (1991) , and Harvard centroid moment tensor catalog. Stars mark locations of destructive
Published: 01 January 2006
DOI: 10.1130/2006.2412(08)
... those that potentially pose major hazards to the populated areas. These include volcanogenic tsunamis in Lake Managua and Lake Nicaragua, scoria cone and maar formation chiefly in the western part of Managua, and major explosive eruptions of Chiltepe and Masaya volcanoes, a large eruption from Masaya...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1961
AAPG Bulletin (1961) 45 (3): 411.
... and the Western Archipelago had disappeared. Diastrophism accompanying the Laramide revolution rejuvenated and further upfolded one of the interior ridges. The Guanarivas Island emerged in northern Costa Rica and southern Nicaragua. Volcanoes on Guanarivas were the north end of a chain that continued as volcanic...
... Velocities from six continuous and 14 campaign sites within the boundaries of the Caribbean plate, including eight new sites from previously unsampled areas of Honduras and Nicaragua at the western edge of the Caribbean plate, are described and tested for their consistency with Caribbean–North...
Journal Article
Journal: AAPG Bulletin
Published: 15 August 2019
AAPG Bulletin (2019) 103 (8): 1925–1962.
...Figure 3. (A) Regional map of the western Nicaragua Rise showing crustal provinces in the study area and (B) table summarizing locations and rock types described in outcrops and wells in Nicaragua that include metamorphic rocks (true basement), exhumed intrusive igneous rocks, and interbedded...
FIGURES | View All (17)
Image
(A) An aeromagnetic data set (contour interval 50 gammas) acquired in 1969 by Superior Oil Associates covering the Pacific coast and the western regions of Lake Managua and Nicaragua. (B) Aeromagnetic interpretation is critical in correlating known offshore faults and folds with the onshore geology and helps constrain the location of the poorly known southwestern boundary fault of the Nicaraguan depression, the Morrito fault zone (MFZ) and the Lake Nicaragua fault zone (LNFZ). Faults and folds are based on the interpretation of aeromagnetic data from the Lake Nicaragua and Managua surveys and previously published geologic maps.
Published: 01 November 2009
Figure 21. (A) An aeromagnetic data set (contour interval 50 gammas) acquired in 1969 by Superior Oil Associates covering the Pacific coast and the western regions of Lake Managua and Nicaragua. (B) Aeromagnetic interpretation is critical in correlating known offshore faults and folds
Journal Article
Journal: Geosphere
Published: 29 March 2019
Geosphere (2019) 15 (3): 621–641.
... along the volcanic front for three arc segments: the Central Volcanic Zone of the Andes arc, the Central America arc at Nicaragua and Costa Rica, and segments of the Alaska–Aleutian Islands arc (northwesternmost USA). The results are comparable to those from seismic surveys. TE depth proxies give ∼70 km...
FIGURES | View All (16)
Journal Article
Journal: Geology
Published: 01 September 2010
Geology (2010) 38 (9): 859–862.
..., with the exception of a lava taken near the summit, that have 238 U excesses ranging from 15% to 26%, among the highest measured in the Central American volcanic arc ( Fig. 2 ). Lavas from western Nicaragua, where the slab signal is inferred to be at a maximum, have elevated ( 230 Th/ 232 Th) ratios, but relatively...
FIGURES
Journal Article
Published: 01 January 1991
Journal of Sedimentary Research (1991) 61 (1): 128–142.
...Karen S. Glaser; Andre W. Droxler Abstract Because the shallow isolated carbonate banks on the northern Nicaragua Rise, the Nicaragua/Honduras and southern Jamaica carbonate shelves, and many other modern carbonate banks worldwide, are covered by an average of 20 to 30 m of water and by a thin...
Published: 01 January 2006
DOI: 10.1130/2006.2402(08)
... that tephra layers recovered during Ocean Drilling Program (ODP) Leg 165 in the western Caribbean Sea were associated with deposits from explosive eruptions in Central America. A total of 112 marine tephra and 79 terrestrial samples from Nicaragua and Honduras were analyzed during this study. An electron...