Geological Sciences Department Annual Report 2018-19
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Geomorphological Approaches to the Study of Neotectonics
Journal of the Geological Society, London, Vol. 143, 1986, pp. 335-342, 4 figs, 4 tables. Printed in Northern Ireland Geomorphological approaches to the study of neotectonics J. C. DOORNKAMP Department of Geography, The University, Nottingham NG7 2RD, UK Abstract: The study of morphotectonics is concerned with the analysis of landforms whose form or origins have been affected by neotectonic activity. Traditional morphotectonic studies have been used as a basis for more refined (e.g. statistical) analyses. After the 1960s, however, there emerged new techniques and new approaches to the study of morphotectonics. These have made more precise not only the recognition of morphotectonic features, but have also improved their dating. The time has come to integrate morphotectonic studies more fully both with the approaches used by other disciplines and with modern geomorphological theory. Neotectonics is frequently associated with morphotectonics, traditional period but which pursued more subtle and more which is concerned with the geomorphology of landforms elusive data, and used more refined analytical techniques. whose character is related to recent tectonics. Morphotec- Typical of these were the studies in Uganda where the early tonics can be sub-divided into two parts. One part centres models of rift valley formationand drainage reversal (to on structural activity resulting from isostatic adjustment formLake Victoria) defined by Wayland (1929, 1934a,b) since the Quaternary, and the other is more concerned with were elaborated by Doornkamp & Temple (1966). neotectonics which is not itself responsea to post- Statistical analysis of the warped rift valley shoulders Pleistoceneisostatic effects. Thisaccount is restricted to (Doornkamp 1972) revealed zones of warping much more neotectonics; topics relating to isostatic effects are discussed precisely than had hitherto been the case. -
Determination of Total Methane Emissions from the Aliso Canyon
CALIFORNIA AIR RESOURCES BOARD Determination of Total Methane October 21, 2016 Emissions from the Aliso Canyon Natural Gas Leak Incident This report documents the California Air Resources Board (ARB) staff’s determination of the total methane emissions from the Aliso Canyon natural gas leak incident and the amount needed for full mitigation of the climate impacts. The mitigation is expected to be accomplished with projects funded by the Southern California Gas Company. The report summarizes the various efforts by ARB and others to measure methane emissions from the Aliso Canyon natural gas leak incident, and how they were used to estimate the total methane emitted from the incident. The total amount of methane needed to fully mitigate the climate impacts of the leak is 109,000 metric tons. CALIFORNIA AIR RESOURCES BOARD Table of Contents Summary ..................................................................................................................................................... 1 Background ................................................................................................................................................. 2 Quantifying the Amount of Methane Emitted ......................................................................................... 5 Preliminary ARB Estimate ..................................................................................................................... 5 Emission Estimates from Southern California Gas Company ........................................................ -
Study of Morphotectonics and Hydrogeology for Groundwater
STUDY OF MORPHOTECTONICS AND HYDROGEOLOGY FOR GROUNDWATER PROSPECTING USING REMOTE SENSING AND GIS IN THE NORTH WEST HIMALAYA, DISTRICT SIRMOUR, HIMACHAL PRADESH, INDIA Thapa, R1, Kumar Ravindra2and Sood, R.K1 1Remote Sensing Centre, Science Technology & Environment, 34-SDA Complex, Kasumpti, Shimla, Himachal Pradesh, India 171 009 India - [email protected], [email protected] 2Centre of Advanced Study in Geology,Panjab University Chandigarh,160 014 India - [email protected]. KEY WORDS: Satellite Imageries, Neo-Tectonics,GPS, Hydrogeology, Morphometric Analysis, Weightage, GIS, Ground Water Potential. ABSTRACT: The study of aerial photographs, satellite images topographic maps supported by ground truth survey reveals that the study area has a network of interlinked subsurface fractures. The features of neo-tectonic activities in the form of faults and lineaments has a definite control on the alignment of many rivers and their tributaries. Geology and Morphotectonics describes the regional geology and its correlation with major and minor geological structures. The study of slopes, aspects, drainage network represents the hydrogeology and helps in categorization of the land forms into different hydro-geomorphological classes representing the relationship of the geological structures vis-à-vis the ground water occurrence. Data integration and ground water potential describes the designing of data base for ground water analysis in GIS platform and the use of hydro-geomorphological models based on satellite imageries -
Mechanical Modelling of Oblique Convergence in the Zagros, Iran
Geophys. J. Int. (2006) 165, 991–1002 doi: 10.1111/j.1365-246X.2006.02900.x Mechanical modelling of oblique convergence in the Zagros, Iran ∗ Philippe Vernant and Jean Ch´ery Laboratoire Dynamique de la Lithosph`ere, CNRS-Universit´e de Montpellier II, CC 060, place E. Bataillon, 34095 Montpellier Cedex 05, France. E-mail: [email protected] 2.fr Accepted 2006 January 7. Received 2005 October 28; in original form 2005 October 28 SUMMARY Recent GPS surveys indicate that the Zagros kinematics corresponds to an oblique convergence between a rigid central Iranian plateau and the Arabian plate at ∼7mmyr−1 at the longitude of the Persian Gulf. Convergence is almost frontal in the SE Zagros and oblique (45◦)inthe NW part of the range. It has been proposed that internal deformation of the NW Zagros occurs in a partitioned mode. In such a view, the Main Recent Fault (MRF) bordering the Iranian plateau accommodates all the tangential motion, while shortening happens by pure thrusting within the fold and thrust belt as suggested by the focal mechanisms within the range. We use a 2.5-D mechanical finite element model of the Zagros to understand the influence on the Zagros deformation of (1) the obliquity of convergence, (2) the rheological layering of the lithosphere (strong upper crust, weak lower crust, strong or weak uppermost mantle) and (3) a possible weakness of the MRF. Surprisingly, a fully partitioned mode occurs only when the collision is very oblique. In the case of the NW Zagros, we find that the MRF can accommodate only ∼25 per cent of the whole tangential motion. -
Proposed Final 2016 Integrated Energy Policy Report
DOCKETED Docket Number: 16-IEPR-01 Project Title: General/Scope TN #: 215417 Document Title: Proposed Final 2016 Integrated Energy Policy Report Update- Track Changes Version Description: N/A Filer: Stephanie Bailey Organization: California Energy Commission Submitter Role: Commission Staff Submission 1/18/2017 12:26:54 PM Date: Docketed Date: 1/18/2017 California Energy Commission COMMISSION REPORT 2016 Integrated Energy Policy Report Update California Energy Commission Edmund G. Brown Jr., Governor January 2017 | CEC-100-2016-003-CMF California Energy Commission Robert B. Weisenmiller, Ph.D. Chair Commissioners Karen Douglas, J.D. J. Andrew McAllister, Ph.D. David Hochschild Janea A. Scott Stephanie Bailey Jim Bartridge Ryan Eggers Guido Franco Cary Garcia Judy Grau Aleecia Gutierrez Eli Harland Mike Jaske Melissa Jones Chris Kavalec Lana Wong Sonya Ziaja Primary Authors Raquel Kravitz Project Manager Heather Raitt Program Manager Robert P. Oglesby Executive Director DISCLAIMER Staff members of the California Energy Commission prepared this report. As such, it does not necessarily represent the views of the Energy Commission, its employees, or the State of California. The Energy Commission, the State of California, its employees, contractors and subcontractors make no warrant, express or implied, and assume no legal liability for the information in this report; nor does any party represent that the uses of this information will not infringe upon privately owned rights. This report has not been approved or disapproved by the Energy Commission -
Safety Through
SPRING 2016 TURN’s 2014-2015 Annual Report QUARTERLY NEWSLETTER OF THE UTILITY REFORM NETWORK, TURN Mark Toney’s Letter PAGE 2 Donor Thank Appreciation You! PAGE 8 turnin POINTS g SAFETY THROUGH Accountability G&E mismanagement and regulatory laxity In related cases investigating the safety of by the California Public Utilities Commission Sempra’s management of its SoCal Gas and P(CPUC) were the main causes of the fatal SDG&E pipelines, TURN was also successful in PG&E explosion in a residential demanding shareholder neighborhood in San Bruno in “Regulators must hold funding for neglected main- 2010. After close to five years of utilities accountable tenance. Sempra tried to advocacy, TURN and the City of charge customers twice for San Bruno won unprecedented for the risk reductions testing the same pipelines, they promise, as cost- LEGAL DIRECTOR penalties of $1.6 billion to be since the company had THOMAS LONG paid by PG&E shareholders and effectively as possible” failed to properly record test applied toward fixing neglected results the first time. TURN — THOMAS LONG, TURN LEGAL DIRECTOR pipelines and replacing missing demanded that Sempra pay and inaccurate records. for the re-tests which were TURN’s victories in the San Bruno case, spear- only needed because of its own failures. But last headed by Legal Director Thomas Long, will hold minute lobbying pushed the Commission’s deci- PG&E accountable to higher standards in the future, sion in favor of Sempra, a decision TURN quickly and prevent PG&E from charging customers for the appealed. On rehearing, we finally won a just de- costs of its own mistakes. -
Quantifying the Loss of Processed Natural Gas Within California's
Manuscript prepared for Atmos. Chem. Phys. with version 2014/09/16 7.15 Copernicus papers of the LATEX class copernicus.cls. Date: 13 September 2016 Quantifying the Loss of Processed Natural Gas Within California’s South Coast Air Basin Using Long-term Measurements of Ethane and Methane Debra Wunch1,2, Geoffrey C. Toon2,3, Jacob K. Hedelius2, Nicholas Vizenor4, Coleen M. Roehl2, Katherine M. Saad2, Jean-François L. Blavier2,3, Donald R. Blake4, and Paul O. Wennberg2,5 1Department of Physics, University of Toronto, Canada 2Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA 3Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA 4Department of Chemistry, University of California, Irvine, California, USA 5Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California, USA Correspondence to: Debra Wunch ([email protected]) Abstract. Methane emissions inventories for California’s South Coast Air Basin (SoCAB) have un- derestimated emissions from atmospheric measurements. To provide insight into the sources of the discrepancy, we analyse records of atmospheric trace gas total column abundances in the SoCAB starting in the late 1980s, to produce annual estimates of the ethane emissions from 1989–2015, 5 and methane emissions from 2007–2015. The first decade of measurements shows a rapid decline in ethane emissions coincident with decreasing natural gas and crude oil production in the basin. Be- tween 2010 and 2015, however, ethane emissions have grown gradually from about 13±5 Gg · yr−1 to about 23 ± 3 Gg · yr−1, despite the steady production of natural gas and oil over that time pe- riod. -
UC Berkeley Officials Reveal Servers Were Attacked
VOLUME 49, ISSUE 38 THURSDAY, MARCH 3, 2016 WWW.UCSDGUARDIAN.ORG MEN’S BASKETBALL UCSD GUARDIAN University’s CHOICE AWARDS Mental Health Services Gets C+ Grade The UC Student Association based their evaluations on accessibility, staff diversity and student outreach. BY Mario EspiNOZA CONTRIBUTING WRITER YOU KNOW THEIR STANCES Senior forward Drew Dyer scored the game-tying shot during Tuesday night’s game against Sonoma State right at the UCSD received a C+ grade in ON IMMIGRATION AND THE second half buzzer. UCSD went on to win the game in overtime 71–66. Photo by Megan Lee /UCSD Guardian SECOND AMMENDMENT, BUT the UC Student Association’s mental DO YOU KNOW THEIR FAVORITE health services evaluation on Feb. FILMS OF 2015? WE DO. FIND 9. UCSA conducted the study as UC SYSTEM part of the #HowAreYou campaign, OUT WHAT THEY ARE AND which aims to draw attention to MUCH, MUCH MORE. the University of California’s failure to provide adequate services for weekend, PAGE 6 UC Berkeley Offcials Reveal students in need of mental help. A.S. Vice President of External Affairs Krystl Fabella, who is also PEER LISTENING Servers Were Attacked a member of UCSA’s Board of mental health resources Directors, described to the UCSD Opinion, Page 4 By promita nandy Guardian how UCSD’s score UC Berkeley’s financial system, which stores the campus officials were in the process of patching a reflects how the university does not bank account and social security numbers of students, security flaw in the financial system. The campus’s prioritize student mental health, MEN'S BASKETBALL faculty and vendors, was breached on Dec. -
EARTH SCIENCES RESEARCH JOURNAL Seismotectonic
EARTH SCIENCES RESEARCH JOURNAL Eart Sci. Res. J. Vol. 19, No. 1 (June, 2015): 7 - 13 SEISMOLOGY Seismotectonic-Geologic Hazards Zoning of Iran Mehran Arian Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran; [email protected] ABSTRACT Key words: Seismotectonic, Hazards, Zoning map, Iran, Seismicity, Earthquake Seismotectonic-geologic hazards zoning map of Iran is drawn based on deterministic seismic hazards evaluation using the seismicity records, structural trends, tectonic settings, fault ruptures and neotectonics activities in Iran. This map has been prepared to indicate the seismotectonic-geologic hazards of Iran. It contains the earthquake hazards parameters such as b value and Mmax for the nineteen seismotectonic provinces. Furthermore, Moho discontinuity depth, seismogenic layer depths and seismic rates for all provinces are investigated. The majority of deformation in Iran has been concentrated in the continental crust of the country. Zagros and Alborz experience deep earthquakes that are an indication of existence of the thick-skinned tectonics. Finally, some provinces such as Piranshahr- Borojen, East Iran, Naien- Rafsanjan and East Alborz, which include main suture zones of Iran, have faced high seismic hazards. RESUMEN Palabras clave: Sismotectónica, amenazas, mapa zonal, Irán, sismicidad, terremoto. Este estudio se realizó con el fin de preparar un mapa zonal de amenazas seismotectónicas y geológicas de Irán con base en la evaluación de amenazas sismícas deterministas a través de los registros sísmicos, las tendencias estructurales, las configuraciones tectónicas, las rupturas de fallas y la actividad neotectónica en Irán. Este mapa contiene los parámetros de amenaza sismológica como los valores b y Mmax para las 19 provincias sismotectónicas del país. -
Legislative, Public Affairs and Media Report
BOARD MEETING DATE: December 7, 2018 AGENDA NO. 12 REPORT: Legislative, Public Affairs and Media Report SYNOPSIS: This report highlights the October 2018 outreach activities of the Legislative, Public Affairs and Media Office, which includes Major Events, Community Events/Public Meetings, Environmental Justice Update, Speakers Bureau/Visitor Services, Communications Center, Public Information Center, Business Assistance, Media Relations, and Outreach to Community Groups and Federal, State, and Local Government. COMMITTEE: No Committee Review RECOMMENDED ACTION: Receive and file. Wayne Nastri Executive Officer DJA:LTO:DM:jns BACKGROUND This report summarizes the activities of the Legislative, Public Affairs and Media Office for October 2018. The report includes: Major Events; Community Events/Public Meetings; Environmental Justice Update; Speakers Bureau/Visitor Services; Communications Center; Public Information Center; Business Assistance; Media Relations; and Outreach to Community Groups and Governments. MAJOR EVENTS (HOSTED AND SPONSORED) Each year SCAQMD staff engage in holding and sponsoring a number of major events throughout the SCAQMD’s four county area to promote, educate and provide important information to the public regarding reducing air pollution, protecting public health, and improving air quality and the economy. October 5 SCAQMD held the 30th Annual Clean Air Awards to honor those who have made outstanding clean air contributions to the health of our communities and economy. The event was attended by more than 350 guests -
AB 617 Community Self-Recommendation Form Please Send Us the Completed Form by Mail: by Email: Or Attn:AB 617 Forms [email protected] 21865 Copley Dr
AB 617 Implementation: Updated Preliminary Community List from SCAQMD 1. Background/Introduction This report provides an update to the April 27, 2018 report to CARB, titled “Update on the AB 617 Community Identification Process: Preliminary Community List”. The South Coast Air Quality Management (SCAQMD) staff conducted extensive public outreach over the past several months and established a deadline of May 7, 2018 for communities to send us their self-recommendations for consideration in Year 1. This deadline was established to provide communities with sufficient time to submit their recommendations following the initial series of five AB 617 public meetings hosted by SCAQMD. This report provides an update on the self-recommendations received, and an updated preliminary community list that includes all self-recommended communities. As described in the previous report, the SCAQMD staff is using a broadly inclusive approach in drafting this preliminary list, which includes all communities that provided self-recommendations, communities that were recommended verbally during an SCAQMD AB 617 public meeting, and communities that California Air Resources Board (CARB) staff noted were requested for AB 617 during CARB public meetings (based on emails sent from CARB staff to SCAQMD staff). Based on this preliminary list, this report also provides a list of community organizations that have worked with the SCAQMD staff on various projects. The Appendix to this report includes all the self-recommendation forms and letters received by SCAQMD. 2. Community self-recommendations SCAQMD staff received a total of 148 self-recommendation forms or letters on or before May 16, 2018. This includes forms and letters sent directly to SCAQMD, as well as self- recommendations sent to CARB that were subsequently forwarded to SCAQMD staff. -
Evolution Des Reliefs En Mongolie-Sibérie
Chronologie et évolution des reliefs dans la région Mongolie-Sibérie: Approches thermochronologique et morphotectonique R.Vassallo (1), J-F.Ritz (1), M. Jolivet (1), R. Braucher (2), S. Carretier (3), C. Larroque (4), A. Chauvet (1), C. Sue (5), M.Todbileg (6), D. Bourlès (2), A. Arzhannikova and S. Arzhannikov (7) (1) Laboratoire Dynamique de la Lithosphère, Université Montpellier II, France, (2) CEREGE, Aix-en-Provence, France, (3) LMTG,Toulouse, France, (4) Géosciences Azur, Sophia-Antipolis,Valbonne, France, (5) Département de Géologie, Université de Neuchatel, Suisse, (6) Mongolian University of Science and Technology, Ulaan Baatar, Mongolia, (7) Institut of Earth Crust, Irkutsk, Russia. Our study focuses on the mountain building process of a massif in an intracontinental transpressional domain.The Ih Bogd massif, situated along the Bogd fault, a major intracontinental active strike- slip fault in the eastern Gobi-Altay (Mongolia), presents a morphology exceptionally well preserved and shows clear relationships between topography and structures, allowing the analysis of its morphological and tectonic evolution. We coupled morphotectonics and 10Be ages to constrain the history of the incision in the main drainage basin of Ih Bogd massif. This study allows a better understanding of the mechanisms and the timing of the interactions between climate and tectonics within Gobi-Altay massifs. 85˚ 90˚ 95˚ 100˚ 105˚ 110˚ 115˚ PROJECTION MERCATOR Sa Using fission tracks on apatites, Vassallo et al. (in revision for EPSL) dated the peneplanation to the Jurassic. The preservation of this yan Est CRATON surface attests of the low erosion rate in the region - except the occurrence of a few glacial deposits in the upper northern flank, the 55˚ 55˚ Ih Bogd massif does not present any large scale glacial morphology such as moraines, glacial stairways, rock bars - and shows that its ? ? SIBERIEN yanOuest Sa al recent uplift occurred without major tilting or folding.