New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume最新文献_第3页

GEOMORPHIC S7ETTING OF ARCHAEOLOGICAL SITES AND TIMING OF RECENT EOLIAN EVENTS ON THE PAJARITO PLATEAU, NEW MEXICO 新墨西哥帕加里托高原考古遗址的地貌设置和最近风成事件的时间

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.674

P. Drakos, S. Reneau

引用次数: 0

THE KRZYZANOWSKI BONEBED: AN UPPER TRIASSIC (ADAMANIAN: LATEST CARNIAN) VERTEBRATE FAUNA, AND ITS IMPLICATIONS FOR MICROVERTEBRATE STUDIES krzyzanowski骨床:上三叠统(adamanian:最新卡尼系)脊椎动物区系及其对微脊椎动物研究的意义

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.681

A. Heckert, S. Krzyzanowski, S. Lucas, S. K. Harris

{"title":"THE KRZYZANOWSKI BONEBED: AN UPPER TRIASSIC (ADAMANIAN: LATEST CARNIAN) VERTEBRATE FAUNA, AND ITS IMPLICATIONS FOR MICROVERTEBRATE STUDIES","authors":"A. Heckert, S. Krzyzanowski, S. Lucas, S. K. Harris","doi":"10.56577/sm-2004.681","DOIUrl":"https://doi.org/10.56577/sm-2004.681","url":null,"abstract":"The Krzyzanowski bonebed (NMMNH locality 3764) is an extremely rich vertebrate locality in Upper Triassic Chinle Group strata in the Blue Hills near St. Johns in east-central Arizona. The fauna of the Blue Hills includes the aetosaur Stagonolepis and the phytosaur Rutiodon , both index fossils of the Adamanian (latest Carnian) land-vertebrate faunachron. The bonebearing horizon is low in the Blue Mesa Member of the Petrified Forest Formation and consists of an intraformational conglomerate that rapidly (<10 cm) fines upward into a bentonitic mudstone. The entire bonebed appears to be pedogenically modified, as the strata are color-mottled, and the bones are frequently encrusted with an iron-rich concretionary coating. Fossils from the Krzyzanowski bonebed consist of disarticulated, but associated (often jumbled) bones of small tetrapods and fish, and the largest elements recovered thus far are less than 20 cm maximum dimension. To date, the macrovertebrate fauna consists of actinopterygian and coelacanth fish, extremely fragmentary metoposaurid amphibians (confined to the base of the bonebed), phytosaurs, at least one sphenosuchian, several fish, probable theropods, and a possible ornithischian. Among the most important of these are a fish with an elongate, edentulous rostrum, and a tiny dentary bearing teeth that closely resemble those of Triassic ornithischians. Microvertebrates previously reported from the quarry include actinopterygian fish, at least two archosauriforms, probable theropods, an ornithischian dinosaur, and another probable herbivorous","PeriodicalId":142738,"journal":{"name":"New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123183366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

FISSURES ASSOCIATED WITH THE PAJARITO FAULT SYSTEM, RIO GRANDE RIFT, NEW MEXICO 与新墨西哥州里奥格兰德裂谷的帕加里托断层系统有关的裂缝

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.698

A. Lavine, J. Gardner, C. Lewis

引用次数: 0

STRATIGRAPHY AND TECTONIC IMPLICATIONS OF OLIGO-MIOCENE ROCKS IN THE SOUTHWESTERN JEMEZ MOUNTAINS, NEW MEXICO 新墨西哥杰梅兹山脉西南部渐新-中新世岩石的地层学及构造意义

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.693

S. Kelley, S. Connell

引用次数: 2

THE PALEOCLIMATIC IMPLICATIONS OF HOLOCENE SHORELINE STRATIGRAPHY OF THE EL FRESNAL BASIN, NORTHERN CHIHUAHUA, MEXICO 墨西哥奇瓦瓦州北部el fresnal盆地全新世岸线地层的古气候意义

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.717

J. Parker, P. Fawcett

{"title":"THE PALEOCLIMATIC IMPLICATIONS OF HOLOCENE SHORELINE STRATIGRAPHY OF THE EL FRESNAL BASIN, NORTHERN CHIHUAHUA, MEXICO","authors":"J. Parker, P. Fawcett","doi":"10.56577/sm-2004.717","DOIUrl":"https://doi.org/10.56577/sm-2004.717","url":null,"abstract":"The El Fresnal basin is one of four sub-basins constituting the formerly extensive Pluvial Lake Palomas system of northern Chihuahua and southern New Mexico. This basin is highly responsive to minor climate changes because of its large drainage area and high elevation headwaters. Castiglia (2002) documented constructional beach ridge complexes (BRCs) in the El Fresnal basin, that record millennially spaced highstands during the Holocene. This chronology shows early (8269±64, 8456±97 14 C yr B.P.), middle (6110±80 to 6721±68 14 C yr B.P.), and two late Holocene highstands (3815±52 to 4251±59 and 221±33 14 C yr B.P.). Using this framework, I describe the detailed stratigraphy and geomorphology of these BRC sediments to refine the BRC chronology. The BRC sediments comprise well-resolved lacustrine sediments that interfinger with distal alluvial fan sediments. The stratigraphic record of the early Holocene BRC shows two highstands punctuated by a soil-forming interval. A lacustrine silty clay unit coarsens to a lacustrine sandy loam unit, and is followed by a unit of small gravel filled channels and minor soil development. These units are indicative of a regressive sequence, and are overlain by a transgressive lacustrine unit and possible deltaic units. Then, as indicated by geomorphic evidence, a major period of erosion and shoreline incision is followed by a middle Holocene highstand. The middle Holocene highstand, during the supposed Altithermal, demonstrates the sensitivity of the basin to subtle climatic perturbations. These records have unique implications for the Chihuahuan Desert paleoclimate, especially when compared to regional lacustrine paleoclimate reconstructions.","PeriodicalId":142738,"journal":{"name":"New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134249872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

OVERVIEW OF GEOLOGY OF WINE-PRODUCING AREAS IN NEW MEXICO 新墨西哥葡萄酒产区的地质概况

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.690

A. Hunt, S. Lucas

引用次数: 0

PETROGRAPHIC ANALYSIS OF CUTTINGS FROM THE YATES #2 LA MESA WELL AND IMPLICATIONS FOR THE TECTONIC HISTORY OF THE SOUTHERN ESPANOLA BASIN yates #2 la台地井岩屑岩相分析及其对espanola盆地南部构造史的意义

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.713

Caroline Myer, Gary A. Smith

引用次数: 0

BIRD FOOTRPINTS FROM THE MIOCENE “ABIQUIU” FORMATION OF NORTH-CENTRAL NEW MEXICO WITH A REVIEW OF CENOZOIC TETRAPOD TRACKS OF NEW MEXICO 新墨西哥中北部中新世“阿比基乌”地层的鸟脚印与新墨西哥新生代四足动物足迹的回顾

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.689

A. Hunt, S. Kelley, S. Lucas

{"title":"BIRD FOOTRPINTS FROM THE MIOCENE “ABIQUIU” FORMATION OF NORTH-CENTRAL NEW MEXICO WITH A REVIEW OF CENOZOIC TETRAPOD TRACKS OF NEW MEXICO","authors":"A. Hunt, S. Kelley, S. Lucas","doi":"10.56577/sm-2004.689","DOIUrl":"https://doi.org/10.56577/sm-2004.689","url":null,"abstract":"A new fossil specimen from New Mexico Museum of Natural History locality 5585 in the southwestern Jemez Mountains represents the second record of fossil bird tracks from New Mexico. The strata that yielded the specimen were previously mapped as Zia Formation, but recent work by Shari Kelley indicates that the strata are more likely equivalent to the Abiquiu Formation. The Oligocene to Miocene sedimentary rocks in this area can be divided into lower volcaniclastic member and an upper fluvial sandstone member. The tracks are from low in the fluvial unit. The tracks are from low in the fluvial unit. The fluvial unit has an 40 Ar/ 39 Ar age of 20.61±0.07 Ma on an ash bed about 6.5 km NE of NMMNH locality 5585. This is a lower Miocene (close to the boundary of the Arikareean and Hemingfordian landmammal “ages”) age. The new specimen consists of a nearly rectangular slab with dimensions of approximately 26 x 12 x 2.5 cm. There at least 16 bird tracks on one surface which all appear to represent one ichnotaxon. The impression of digit II is 2.25-2.5 cm long and is straight or incurved. The digit impressions of II and IV are straight and about 1.5 and 2 cm in length respectively. A distinct hallux impression is located immediately posterior to digit impression II and is 04- 0.6 cm long. There is no preservation of webbing. In at least two instances there are double imprints of digit impressions suggesting that the bird stayed in one location for a period and shifted its position. There are no clear trackways or indication of a preferred orientation to the tracks. These factors suggest terrestrial feeding activity. The","PeriodicalId":142738,"journal":{"name":"New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129022274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DEFLECTION OF RIO SALADO TERRACE SURFACES DUE TO UPLIFT OF THE SOCORRO MAGMA BODY, SOCORRO, NEW MEXICO 由于索科罗岩浆体的隆起，新墨西哥索科罗，里约萨拉多阶地表面的偏转

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.706

L. Majkowski, J. Harrison, D. Love

{"title":"DEFLECTION OF RIO SALADO TERRACE SURFACES DUE TO UPLIFT OF THE SOCORRO MAGMA BODY, SOCORRO, NEW MEXICO","authors":"L. Majkowski, J. Harrison, D. Love","doi":"10.56577/sm-2004.706","DOIUrl":"https://doi.org/10.56577/sm-2004.706","url":null,"abstract":"The Socorro magma body is located in central New Mexico along the intersection of the Socorro fracture zone and the Rio Grande rift. The inflation rate of the magma body has been approximated at 2 to 4 mm/yr, based on leveling data by Larsen and others (1986) and InSAR data by Fialko and others (2001). This is a rapid rate that will impact the landscape evolution of the nearby Rio Salado drainage. The focus of this study is to evaluate the rate and amount of stream terrace deflection due to uplift of the magma body. Perturbations of the fluvial system act to offset stream terrace surfaces. The area of maximum uplift is localized. Both the Rio Grande and Rio Salado traverse this zone. Comparison of the modern stream profile with the paleostream profiles (indicated by the fluvial terraces) will show increasing deflection across the zone of maximum uplift. Preliminary examination of the Rio Salado drainage indicates that there are four terraces. Soils will be used to correlate and to estimate the ages of the terraces, based on the degree of CaCO 3 accumulation. This study will constrain the relative ages of the surfaces, determine the degree of uplift and form the basis for numeric age dating of the terrace surfaces.","PeriodicalId":142738,"journal":{"name":"New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129026509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TURONIAN AMMONITES FROM THE UPPER CRETACEOUS D-CROSS MEMBER OF THE MANCOS SHALE, PUERTECITO, SOCORRO COUNTY, NEW MEXICO 新墨西哥州索科罗县普尔特西托曼科斯页岩上白垩统d-cross段的Turonian菊石

New Mexico Geological Society, 2004 Annual Spring Meeting, Proceedings Volume Pub Date : 2004-04-16 DOI: 10.56577/sm-2004.726

P. Sealey, S. Lucas

引用次数: 0