http://www.sciencedirect.com/science/article/pii/S1674987114000887

The increasing number of fossil pterosaur eggs sheds light on nesting environments and breeding be- haviors of these extinct flying reptiles. Here we report the first partial three-dimensional egg of the pterosaur, Pteroduustro guinazui, from central Argentina. The specimen was discovered from the same Albian deposits as the exceptional R guinazui embryo described in 2004. Microscopic characterizations indicate a pristine preservation of the 50 Bm thick calcium carbonate, which differs significantly from the soft shell of Chinese pterosaur eggs. Estimate of the eggshell conductance implies that the nest had a minimum moisture content of 75%. This moisture estimate, combined with geological and taphonomical data, suggests that P. guinazui may have adopted a nesting strategy similar to those of grebes and flamingos rather than being buried on land, as previously hypothesized. Moreover, our results demon- strate that the nesting paleoenvironment of this pterosaur species was closely linked to a mesohaline lacustrine ecosystem in a basin governed by regional tectonic subsidence, a setting characteristic for the feeding and reproduction of modern flamingos.     

A New Boreopterid Pterodactyloid Pterosaur from the Early Cretaceous Yixian Formation of Liaoning Province, Northeastern China

<正>A new boreopterid pterosaur:Zhenyuanopterus longirostris gen.et sp.nov.from the Yixian Formation of western Liaoning is erected,based on the complete skeleton with a skull and lower jaws preserved.It is characterized by:a large boreopterid pterosaur with a high number of teeth,where the anterior teeth are much larger than posterior ones;the length of the dorsal + sacral vertebrae is nearly half the length of the skull;ratio of the length of the humerus to metacarpal IV is approximately 91%and the,humerus,femur and third wing phalanx are all equal in length and the feet are specially small.It represents the largest boroepterid pterosaur discovered from western Liaoning and its surrounding areas so far     

河南煤田地质局支援新疆哈密建设亿吨级煤炭生产基地

目前,我国迄今最大的煤田地质勘探项目——＂新疆哈密三塘湖煤田普查勘探项目＂启动。河南省煤田地质局组织数百名精干职工和国际先进的仪器装备参与会战,支援新疆哈密建设亿吨级煤炭生产基地。     

临海翼龙江南"神话"

山。重重叠叠的山，似一道道屏障，摆在浙东沿海的锦绣大地上。国家级历史文化名城临海便掩映在这群山叠翠之中。临海市境内。有一片神奇的地方．那便是桃渚国家级地质公园。从临海往东经小芝去桃渚，一路上，扑入眼帘的。除了山还是山。那些山啊，有的横亘眼前，有的夹道相迎，蜿蜓起伏，绵延不绝。令人叹为观止。     

Viva固定式基站在“百里风区”的应用

一、背景概述兰新铁路第二双线是一条新的铁路大动脉,它将贯穿我国西北地区的甘肃、青海、新疆3省区。兰新铁路第二双线自兰州西站引出,经青海西宁,甘肃张掖、酒泉、嘉峪关,新疆哈密、吐鲁番,引入乌鲁     

喀尔里克冰川，哈密天上的水库

我喜欢自然,尤其是座落在西部高山高原上的冰川,她们像圣母,圣洁庄重;像少女,洁白无暇;像国王,仁慈威严……东天山主峰喀尔里克山上就分布着座座冰川,她们在阳光下,清澈明净,闪耀着亦幻亦真的洁白无暇;在晨光暮霭中,又变换成庄严辉煌的金光。喀尔里克冰川,是哈密天上的水库,她用冰雪乳汁,滋润着哈密绿洲,养育着这方水土和这片水土上辛劳的人民。     

翼龙:昔日的天空王者

<正>如果你能有幸回到白垩纪,抬头仰望,你将会看到一只只庞然大物从天空中略过,他们挥动着巨大的翅膀,优雅地在空中翱翔。他们当中,说不定有哪一只会突然降落在你的面前,在掀起的沙尘中,用巨大的眼睛和你对视,然后扬起带着华丽"头饰"的头颅,显示自己那如剃刀般锋利的喙,他要用这种方式向你证明,谁才是这片天空当之无愧的霸主。如今,虽然他们早已成为了历史和传说,他们的名字依然响亮,他们就是中生代天空的主宰——     

新疆哈密沙东发现大型自钨矿

新疆地矿局近日透露,其勘探人员在新疆哈密沙东一带发现了一个大型白钨矿,初步预测资源量3万-5万吨金属钨。这填补了新疆东天山成矿带没有大型白钨矿的空白。钨属于有色金属,也是重要的战略金属,钨及其合金是现代工业、国防及高新技术应用中极为重要的功能材料之一．广泛应用于航天、电气工业、电子工业、化学工业等诸多领域。     

新疆哈密黄山地区多金属矿床遥感地质信息提取与找矿模式研究

东天山地区是我国重要的矿产资源远景区,蕴藏着金、铜、镍、钼等矿种,其独特的地理特点非常有利于遥感找矿研究。在分析黄山地区多金属矿床研究资料的基础上,利用ETM影像进行遥感找矿研究,拟建立适合该区的遥感找矿模式,实现该区快速、节省资源勘探目标。研究的方法步骤为：首先对影像进行滤波处理提取区域构造信息,确定找矿远景区;进而利用与金属矿化有关的蚀变岩的ETM双峰波谱特性,采用比值主成分变换技术对已确定的成矿远景区进行蚀变信息提取,从而缩小勘探范围,确定勘探靶区,在此基础上建立该区多金属矿床资源勘查的遥感找矿模式。     

吐哈—三塘湖盆地低煤阶煤层气成藏特征研究

正吐哈(吐鲁番—哈密)—三塘湖盆地低煤阶煤层气资源丰富,但低煤阶煤层气成藏规律认识不足。本文在分析吐哈—三塘湖低煤阶煤层气含气性和成因的基础上,从水文地质条件和构造条件等方面,探讨了研究区低煤阶煤层气成藏的重要条件,提出该区的成藏模式,明确低煤阶煤层气勘探方向,对研究区后续的煤层气勘探开发具有一定的借鉴作用。