After finishing packing the crates of gear and core at UNAM, the last day in Mexico. Thanks to all, especially Doug and Ryan [Photo by Maga] (MexiDrill on facebook)
Preparing for Usinger coring of upper part of the Chalco sequence. We hired a backhoe to remove fill overlying the lacustrine sediments. We are doing this to improve our recovery of recent sediments and to increase the quantities of this higher porosity material available for analyses. [Text: byJoe Werne] (MexiDrill on facebook)
Margarita Caballero and Byron Steinman discussing core from 455m depth. With the smaller NQ corer we getting through a basaltic sequence. [Text by Erik Brown] (MexiDrill on facebook)
Popocatépetl was sending up ash and fumaroles this morning http://www.cenapred.gob.mx/cgi-bin/popo/reportes/ultrepi2.cgi). Perhaps it was a good omen; we were back on track and coring with NQ by the end of the day [Text by Erik Brown] (MexiDrill on facebook)
Drinking glasses to re-use in the science tent. Trying to reduce our environmental footprint. Coring is still stopped due to problems penetrating vesicular basalt and scoria, and loss of fluid circulation. We are switching to a smaller diameter core (NQ rather than HQ) [Text by Erik Brown] (MexiDrill on facebook)
Problems with penetrating vesicular basalts (perhaps scoria) at about 425m depth are slowing us down and wearing out drill bits. [Text by Erik Brown] (MexiDrill on facebook)
Documentary film crews from Earth Images (www.earthimage.org) and from UNAM's Centro Universitario de Estudios Cinematográficos (http://www.cuec.unam.mx/) were on site shooting footage. [Text by Erik Brown] (MexiDrill on facebook)
Doug Schnurrenberger with a wellhead near the drilling site on 20 March 2016 (not shown). The second photo shows the same wellhead during the March 2012 ICDP-sponsored Chalco drilling workshop, with Anders Noren lifting Rob Stewart to take a look down the well. Note that continued subsidence in the basin has raised the level of the wellhead significantly in the intervening 4 years. (MexiDrill on facebook)
A nice and thoughtful educational event at a local school at a town called Tulyehualco. Children of certain ages are attending a lecture on the Lake-Chalco ICDP drilling project (posted on the MexiDrill Facebook page for March 18th 2016). (MexiDrill on facebook)
Los chicos del laboratorio MexiDrill en plena acción. Muchas gracias por su apoyo! (fotos Angie Ortiz, publicación Beatriz Ortega) (MexiDrill on facebook) MexiDrill lab students have done a superb work, thanks to all of them! [photos Angie O., post Beatriz Ortega]
Los chicos del laboratorio MexiDrill en plena acción. Muchas gracias por su apoyo! (fotos Angie Ortiz, publicación Beatriz Ortega) (MexiDrill on facebook) MexiDrill lab students have done a superb work, thanks to all of them! [photos Angie O., post Beatriz Ortega]
Our goal: Recovering 800,000 years of climate, ecological, and volcanic history recorded in lake sediment on the southern edge of Mexico City. (MexiDrill on facebook) Major funding agencies: ICDP, NSF, UNAM Partners in the field program: University of Minnesota Duluth, Universidad Nacional Autónoma de México, University of Pittsburgh, University of Minnesota Twin Cities, University of New Mexico, Leibniz Institute of Advanced Geophysics, TU Braunschweig, Instituto Pirenaico de Ecologia, University of Oxford
