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Scientists map underwater topography of more than 1.4 million lakes and reservoirs worldwide 新闻
来源平台:National Center of Atmospheric Research. 发布日期:2022
作者:  admin
收藏  |  浏览/下载:8/0  |  提交时间:2022/03/01
On the trail of methane sources in Scan­di­navia 新闻
来源平台:German Aerosapce Center. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:17/0  |  提交时间:2021/08/26
Ecologists compare accuracy of lidar technologies for monitoring forest vegetation 新闻
来源平台:EurekAlert. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:2/0  |  提交时间:2021/07/26
Contrary to previous belief, strike-slip faults can generate large tsunamis 新闻
来源平台:EurekAlert. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:9/0  |  提交时间:2021/05/07
New Geology articles published online ahead of print in January 新闻
来源平台:EurekAlert. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:18/0  |  提交时间:2021/02/10
Stanford engineers combine light and sound to see underwater 新闻
来源平台:EurekAlert. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:1/0  |  提交时间:2020/12/02
Multiagency Initiative Begins Work on Critical Minerals and Geothermal Energy Research in Nevada 新闻
来源平台:US Geological Survey. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:5/0  |  提交时间:2020/09/22
The vertical structure and spatial variability of lower-tropospheric water vapor and clouds in the trades 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (10) : 6129-6145
作者:  Naumann, Ann Kristin;  Kiemle, Christoph
收藏  |  浏览/下载:5/0  |  提交时间:2020/06/01
Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (9) : 5487-5511
作者:  Ruiz-Donoso, Elena;  Ehrlich, Andre;  Schaefer, Michael;  Jaekel, Evelyn;  Schemann, Vera;  Crewell, Susanne;  Mech, Mario;  Kulla, Birte Solveig;  Kliesch, Leif-Leonard;  Neuber, Roland;  Wendisch, Manfred
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/13
Monumental architecture at Aguada Fenix and the rise of Maya civilization 期刊论文
NATURE, 2020
作者:  Bedding, Timothy R.;  Murphy, Simon J.;  Hey, Daniel R.;  Huber, Daniel;  Li, Tanda;  Smalley, Barry;  Stello, Dennis;  White, Timothy R.;  Ball, Warrick H.;  Chaplin, William J.;  Colman, Isabel L.;  Fuller, Jim;  Gaidos, Eric;  Harbeck, Daniel R.;  Hermes, J. J.;  Holdsworth, Daniel L.;  Li, Gang;  Li, Yaguang;  Mann, Andrew W.;  Reese, Daniel R.;  Sekaran, Sanjay;  Yu, Jie;  Antoci, Victoria;  Bergmann, Christoph;  Brown, Timothy M.;  Howard, Andrew W.;  Ireland, Michael J.;  Isaacson, Howard;  Jenkins, Jon M.;  Kjeldsen, Hans;  McCully, Curtis;  Rabus, Markus;  Rains, Adam D.;  Ricker, George R.;  Tinney, Christopher G.;  Vanderspek, Roland K.
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/03

Archaeologists have traditionally thought that the development of Maya civilization was gradual, assuming that small villages began to emerge during the Middle Preclassic period (1000-350 bc  dates are calibrated throughout) along with the use of ceramics and the adoption of sedentism(1). Recent finds of early ceremonial complexes are beginning to challenge this model. Here we describe an airborne lidar survey and excavations of the previously unknown site of Aguada Fenix (Tabasco, Mexico) with an artificial plateau, which measures 1,400 m in length and 10 to 15 m in height and has 9 causeways radiating out from it. We dated this construction to between 1000 and 800 bc using a Bayesian analysis of radiocarbon dates. To our knowledge, this is the oldest monumental construction ever found in the Maya area and the largest in the entire pre-Hispanic history of the region. Although the site exhibits some similarities to the earlier Olmec centre of San Lorenzo, the community of Aguada Fenix probably did not have marked social inequality comparable to that of San Lorenzo. Aguada Fenix and other ceremonial complexes of the same period suggest the importance of communal work in the initial development of Maya civilization.


Lidar survey of the Maya lowlands uncovers the monumental site of Aguada Fenix, which dates to around 1000-800 bc and points to the role of communal construction in the development of Maya civilization.