However, we now know that since oxygen levels were much lower in the Mesozoic than we assumed, there was much less plant life for sauropods to eat than we thought.
然而我们现在知道了，由于中生代空气的含氧量比我们想象的要低得多，所以蜥脚类动物可食用的植物也比我们想象的要少得多。
In East China Sea shelf basin, the Mesozoic relict sediments are distributed in some central-south areas, such as Fuzhou sag, Minjiang sag and Yushan lower uplift.
东海陆架盆地中生界主要分布于盆地中南部的福州凹陷、闽江凹陷和渔山低隆起地区。
Moreover, from the lower regional magnetic anomaly it can be derived that the lower magnetic layer may be largely affected by the thermal events related to the Mesozoic and Cenozoic magmatism.
根据下部区域磁异常，推测地壳下部磁性层受后期的中、新生代岩浆作用的影响很大。
The high frequency part of Dongsha high-value magnetic anomaly may be related with Cenozoic basalt and Mesozoic magmatic rocks, and the low frequency part developing high-velocity lower crust.
东沙高磁异常含一定的高频成份，与新生代玄武岩及中生代岩浆岩有关，而其低频成份可能反映了发育的下地壳高速层。
The volcanic rocks resulted from upper mantle in Mesozoic group, and volcanic rocks from lower crust in Palapene system.
本区火山岩应主要来自上地幔，而房身泡组源区相对较浅，可能有下地壳物质混人。
The strata of Mesozoic and Cenozoic in the basin can be divided into three parts, Middle Jurassic (Longjiagou Formation ), Lower Cretaceous and Upper Miocene (Baode Formation ).
根据化石组合，龙家沟盆地的地层可划分为中侏罗统龙家沟组，上白垩统及上中新统保德组。
The proved reserves in Cenozoic, Mesozoic, Upper Palaeozoic, Lower Palaeozoic, Proterozoic respectively are 38%, 17%, 30%, 13% and 2% in total.
新生界、中生界、上古生界、下古生界和元古界分别占总探明地质储量38%、17%、30 %、13%和2 %。
According to the drilling results, the middle-lower Jurassic can be considered the main Mesozoic source rock.
钻井揭示，中—下侏罗统为中生界主要烃源岩。
In some of the faulted basins of the Mesozoic to Cenozoic ages in Heilongjiang Province, the Middle Upper Jurassic, Lower Cretaceous and Teritary auriferous conglomerate are most widespread.
黑龙江省一些中—新生代断陷盆地内，中、上侏罗统、下白垩统及第三系砾岩含古砂金较为普遍。
The ore forming material and media came from the strata of the Taihua Group and its lower strata, the granite magma and Mesozoic lake basin.
成矿物质及介质来源于太华群及下部地层、花岗岩浆和中生代湖盆。
The middle scale Huangchengshan silver deposit, prospected and appraised in the recent years, is located in Mesozoic lower-Cretaceous volcanic and subvolcanic rock.
皇城山银矿床是近年勘查评价出的一处中型低温银矿床。
The middle scale Huangchengshan silver deposit, prospected and appraised in the recent years, is located in Mesozoic lower-Cretaceous volcanic and subvolcanic rock.
皇城山银矿床是近年勘查评价出的一处中型低温银矿床。
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