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Eugenia Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 May 1984
GSA Bulletin (1984) 95 (5): 513–521.
... with megablocks of Triassic cherts (shallow-water origin?), Paleozoic limestone, and continental sandstone derived from the north. This unit represents the earliest record of arc-continent interaction in the Baja area. The Eugenia Formation is locally present in erosional contact above the Coloradito Formation...
Journal Article
Journal: Geology
Published: 01 January 1987
Geology (1987) 15 (1): 26–29.
...David L. Kimbrough; James J. Mickey; Richard M. Tosdal Abstract Minor but widespread granitoid clasts occur in Late Jurassic to Early Cretaceous age volcanogenic strata of the Eugenia and Perforada Formations on the Vizcaino Peninsula of Baja California. Most are of two common types: coarse-grained...
Journal Article
Journal: Palynology
Published: 16 January 2023
Palynology (2023) 47 (1): 2103748.
... – Eupatorium -type pollen, and the lightest honeys (i.e. light amber and extra light amber) were those from Cynophalla retusa , Eugenia uniflora , Copernicia alba , Prosopis alba and Helianthus annuus. Mean values for electrical conductivity ranged from 0.4 to 0.8 mS cm −1 , with the highest values detected...
FIGURES
First thumbnail for: An overview of the palynology and physicochemistry...
Second thumbnail for: An overview of the palynology and physicochemistry...
Third thumbnail for: An overview of the palynology and physicochemistry...
Journal Article
Journal: Palynology
Published: 24 February 2025
Palynology (2025) 2411220.
... Sorocea sp. Wind S11B168 Myristicaceae Virola sp. Insect S11B168 Myrtaceae Eugenia sp. Pollen consumer S11B168/SB64 Myrcia sp. Pollen consumer S11B168/SB64 Phytocalaceae Gallesia sp. Insect SB64 Piperaceae Piper sp. Insect-wind S11B168 Poaceae Poaceae type 1...
FIGURES
First thumbnail for: Pollen atlas from bat guano deposits in southeaste...
Second thumbnail for: Pollen atlas from bat guano deposits in southeaste...
Third thumbnail for: Pollen atlas from bat guano deposits in southeaste...
Journal Article
Published: 01 January 1998
Bulletin de la Société Géologique de France (1998) 169 (1): 11–20.
...Nieves Lopez-Martinez; Luis Ardevol; Maria Eugenia Arribas; Jorge Civis; Angel Gonzalez-Delgado Abstract In the Ager basin and Benabarre area (southern Pyrenees, Spain), the Cretaceous-Tertiary (K/T) boundary is recorded in a succession of non-marine to coastal deposits (Lower Tremp Formation...
Journal Article
Journal: Palynology
Published: 18 July 2024
Palynology (2024) 48 (3): 2341029.
... conservation unit with 307.590 hectares, covering three northeastern Brazilian states Piauí, Maranhão and Ceará ( Figure 1 ) (Loebmann et al. 2010 ; ICMBio 2016 ). The vegetation corresponds to the pioneer formation, it occurs predominantly under the marine influence with dune formations (restingas...
FIGURES
First thumbnail for: Larval diet of the carpenter bee Xylocopa ( Neoxyl...
Second thumbnail for: Larval diet of the carpenter bee Xylocopa ( Neoxyl...
Third thumbnail for: Larval diet of the carpenter bee Xylocopa ( Neoxyl...
Journal Article
Published: 01 November 2019
Journal of Paleontology (2019) 93 (6): b1–b4.
.... [email protected] South Central: VICTORIA CHRAIBI, Tarleton State Univ. [email protected] Southeastern: MICHELLE CASEY, Murray State Univ. [email protected] Cover illustration: Hypostome of Calyptaulax strasburgensis from the Edinburg Formation, Middle Ordovician, Strasburg Junction...
Journal Article
Published: 01 November 2019
Journal of Paleontology (2019) 93 (6): f1–f4.
... to the journal website at: cambridge.org/jpa JOURNAL of PALEONTOLOGY VOL 93 | NO 6 | NOVEMBER 2019 1047 Qing Tang, Jie Hu, Guwei Xie, Xunlai Yuan, Bin Wan, Chuanming Zhou, Xu Dong, Guohua Cao, Bruce S. Lieberman, Sally P. Leys, and Shuhai Xiao A problematic animal fossil from the early Cambrian Hetang Formation...
Journal Article
Published: 01 June 2017
Journal of Sedimentary Research (2017) 87 (6): 674–676.
...MARIA EUGENIA ARRIBAS; RAMóN MAS; SARA SACRISTÁN-HORCAJADA 10 April 2017 8 May 2017 Copyright © 2017, SEPM (Society for Sedimentary Geology) 2017 We are herein taking the unusual step of responding to a second discussion presented by Platt and Wright concerning some...
FIGURES
First thumbnail for: EARLY SYN-RIFT EVOLUTION IN THE WEST CAMEROS BASIN...
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1963
AAPG Bulletin (1963) 47 (7): 1217–1236.
.... This failure was chiefly responsible for the stoppage of all exploration activities in this region prior to 1938. Fig. 2. OIL AND GAS FIELDS IN NORTHEASTERN MEXICO Three new gas fields were discovered during 1962: the Huizache gas field which produces from sands in the Frio Formation of Oligocene...
FIGURES
First thumbnail for: Petroleum Developments in Mexico in 1962
Second thumbnail for: Petroleum Developments in Mexico in 1962
Third thumbnail for: Petroleum Developments in Mexico in 1962
Journal Article
Published: 01 December 1988
Bulletin of the Seismological Society of America (1988) 78 (6): 2122–2125.
... Nitzan Rabinowitz Bruce S. Gibson Lee W. Row III Roberta Giuliani Eugenia M. Sangin~s Joan S. Gomberg Bruce A. Schell Susanna J. Gross R. Scherer Dan Newman Hagedorn Yuzo Shinozaki Richard B. Hansen James H. Shirley Barry Hirshorn Jafar Shoja-Taheri Behnam Hushmand Lisa A. Stack Sven Ivansson Hirokazu...
Journal Article
Journal: Elements
Published: 01 February 2021
Elements (2021) 17 (1): 49–51.
... itself on its inclusive nature. It welcomes all who are interested in understanding planetary and stellar formation and evolution through collection and study of extraterrestrial materials, no matter what their background. I, therefore, intend to build on previous efforts to keep academics, students...
Journal Article
Published: 01 January 2017
Journal of Sedimentary Research (2017) 87 (1): 14–16.
...Maria Eugenia Arribas; Ramón Mas; Sara Sacristán-Horcajada 27 7 2016 5 11 2016 Copyright © 2017, SEPM (Society for Sedimentary Geology) 2017 First, we would like to highlight our appreciation of Dr. Platt's and Dr. Wright's comments and the opportunity they give us...
Journal Article
Journal: Palynology
Published: 03 April 2019
Palynology (2019) 43 (2): 292–320.
... Elliptic 3–4 colporate, parasyncolpate Scabrate 23.37 (24.36) 26.43 14.67 (15.23) 18.66 2.00 Plate 7 , figures 24–27 Chen & Shen 1990 T022 Myrtaceae Eugenia hovarum H. Perrier Monads Oblate Triangular Elliptic 3–4 colporate, parasyncolpate Scabrate 10.41 (14.81) 16.23 17.62...
Journal Article
Published: 01 February 2014
Mineralogical Magazine (2014) 78 (1): 165–170.
... mineral is described in the following format: Mineral name, if the authors agree on its release prior to the full description appearing in press Chemical formula Type locality Full authorship of proposal E-mail address of corresponding author Relationship to other minerals...
Journal Article
Published: 22 May 2009
Canadian Journal of Earth Sciences (2009) 46 (3): 207–229.
...Andrej Ernst; Axel Munnecke Abstract The Natiscotec outcrop on Anticosti Island, Canada (Ellis Bay Formation, Laframboise Member, Hirnantian, Late Ordovician), exposes a patch reef some 20–30 m in diameter, 2–3 m thick, with abundant rugose corals, as well as favositids and heliolitids. Reef...
FIGURES
First thumbnail for: A Hirnantian (latest Ordovician) reefal bryozoan f...
Second thumbnail for: A Hirnantian (latest Ordovician) reefal bryozoan f...
Third thumbnail for: A Hirnantian (latest Ordovician) reefal bryozoan f...
Image
Schematic paleogeography of Late Jurassic to Middle Cretaceous rift to foreland basin transition and inferred sediment dispersal, indicated by blue arrows. Communities: A—Albuquerque; Ba—Batopilas; En—Ensenada; EP—El Paso; LA—Los Angeles; LV—Las Vegas; P—Phoenix; SC—Silver City; T—Tucson. Geologic localities of study: Ar—Arizpe; CC—Clyde Canyon (Burro Mountains); CM—Chiricahua Mountains; CR—Cookes Range; Cu—Cucurpe; Ha—Hagan basin; HM—Huachuca Mountains; LHM—Little Hatchet Mountains; PM—Peloncillo Mountains; SA—southern San Andres Mountains; SR—Saddlerock Canyon (Burro Mountains); SY—San Ysidro; Tu—Tuape. U.S. palinspastic reconstruction after Saleeby (2003); Baja California Peninsula restored after preferred reconstruction of Fletcher et al. (2007); Arizona and New Mexico south of Colorado Plateau and Sonora restored for ∼50% mid-Cenozoic extension (Gans, 1997). (A) Late Jurassic assemblage of backarc rift basins formed following westward migration of Middle–Late Jurassic arc across Mexico, adapted from Mauel et al. (2011) and Fitz-Díaz et al. (2018 and references therein). Distribution of marine facies and Aldama Platform (Ap) in Chihuahua are adapted from Haenggi (2002). Note inferred connection of continental Huachuca basin to Chihuahua trough (Ct). Extensive Lower to Middle Jurassic eolianite of southwestern U.S. and northwestern Mexico was recycled to backarc settings, such as Salt Wash fluvial fan (SWf), and forearc settings including Peñasquitos basin (Pb) and Eugenia basin (Eb) (e.g., Kimbrough et al., 2014). Southern edge of Bisbee basin is drawn near north edge of Caborca block (Fig. 1), but rift may have merged southward with inferred backarc basin recorded by interbedded Upper Jurassic marine hyaloclastite and volcanic rocks in the vicinity of Batopilas, Chihuahua (Ba; Lyons, 2016). See text for discussion and additional references. (B) Valanginian–early Aptian backarc rift basins and continental-margin Santiago Peak arc; evidence for a proto-Alisitos arc to the south lies in abundant Lower Cretaceous grains (ca. 150–128 Ma) derived from it in Upper Cretaceous sandstone of northeastern and central Mexico (e.g., Lawton et al., 2009; Juárez-Arriaga et al., 2019). Headward extension of southern Arizona drainage into arc is evidenced by the appearance of volcanic-lithic sandstones in the Morita section. Mogollon–Burro rift shoulder formed headwaters of north-flowing Cedar Mountain (CM) and Burro Canyon (BC) drainages. Forebulge location is after Currie (2002) and Dickinson (2018). Aptian marked maximum extent of fluvial deposition in Chihuahua trough (Las Vigas Formation; Haenggi, 2002). (C) Closure of Arperos basin, accretion of Guerrero terrane, superimposition of eastern zone of Peninsular Ranges arc on suture, and continued sediment delivery from arc to Cintura Formation of northern Sonora and southern Arizona. Cintura and Mojado Formations in Bootheel basin received sediment from eolianite from the southern end of the Cordilleran fold and thrust belt. Subduction polarity of Arperos marginal basin is intepreted as west dipping due to absence of Albian arc on mainland Mexico and emplacement of Guerrero onto Mexico (e.g., Martini et al., 2013; Fitz-Díaz et al., 2018). Onlap of Mojado delta and related marine deposits onto rift shoulder began in late Albian time. Dashed dispersal arrows in southern New Mexico represent schematic incised valleys of lower Dakota Formation (Bauer, 1989) eroded on north flank of remnant rift shoulder. Shoreline position is early Cenomanian maximum progradation of Dakota Formation (adapted from Robinson Roberts and Kirschbaum, 1995). Ash dispersal delivered neovolcanic sediment to upper Mojado sandstone of Bootheel basin in southwestern New Mexico. Developing or remnant topographic highs are required to explain compositional differences between former rift basins. (D) Incursion of Mancos shelfal marine deposits onto rift shoulder and into former Bisbee basin. Arrows indicate directions of marine transgression; dashed line indicates maximum landward extent of shoreline ca. 94 Ma, adapted in U.S. from Robinson Roberts and Kirschbaum (1995), highly schematic in Mexico where record is largely eroded.
Published: 08 April 2020
basin (Pb) and Eugenia basin (Eb) (e.g., Kimbrough et al., 2014 ). Southern edge of Bisbee basin is drawn near north edge of Caborca block ( Fig. 1 ), but rift may have merged southward with inferred backarc basin recorded by interbedded Upper Jurassic marine hyaloclastite and volcanic rocks
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1948
AAPG Bulletin (1948) 32 (5): 790–805.
... the Pacific Ocean on the west from the broad flat lowland at the head of Vizcaino Bay. At the coast the range projects outward to form Point Eugenia ( Fig. 1 ). Cedros Island and Ranger Bank are beyond Point Eugenia and are directly in line with the mountain range; therefore, they may constitute a submarine...
FIGURES
First thumbnail for: Submarine Geology of Ranger Bank, Mexico
Second thumbnail for: Submarine Geology of Ranger Bank, Mexico
Third thumbnail for: Submarine Geology of Ranger Bank, Mexico
Journal Article
Journal: Geology
Published: 08 January 2019
Geology (2019) 47 (2): 163–166.
...Marco Pfeiffer; Claudio Latorre; Eugenia Gayo; Ronald Amundson Abstract We discovered permanently hydrated CaCl 2 -rich soils in Earth’s driest region, the Atacama Desert. The soils contain up to ∼15% CaCl 2 . X-ray diffraction indicates the rare minerals sinjarite, schoenite, and tachyhydrite...
FIGURES
First thumbnail for: Rare calcium chloride–rich soil and implications f...
Second thumbnail for: Rare calcium chloride–rich soil and implications f...
Third thumbnail for: Rare calcium chloride–rich soil and implications f...
Journal Article
Journal: Geophysics
Published: 01 January 2005
Geophysics (2005) 70 (6): Z101–Z113.
... enhancement in prestack seismic data, Reeshidev Bansal and Matthias G. Imhof 3 V73 Doll, William E., see Xia, Jianghai 4 G69 Dowd, Peter A., Estimating the boundary surface between geologic formations from 3D seismic data using neural networks and geostatistics 1 P1 Dumont, Régis, see Vallée...