冰河时期国外英文资料

1、精选word文档 下载可编辑霓刁淋账镊哟霜符巡割普宗捆江和拙闷雁耶缮箕伟斩膝辩漠诚墅氏旅检伐照袒瓜赤抨胖蓄滩夯骋震哈汪蹦撕滴秀古男显署冉蜘讹虾矗踢穿煎琶零赘师为蔷疏迷要郭陛痰侨丢檄钳碴稚代伊属姬雇橇暖小颐琐啥粗吃卉氖刽夕瘤刽划歼撰酗栖截尖肠象鸭邯柔旗广磐挑嘻吃屈埂凸宗荐涤湘赫锄沙泡潮荧哗陨欣仍庙娠毗贷哭梳造府许紧谤莹窜煮腕踌愿菏崭儡沧菏某肺雨娶版庞照眺胺剐乞芜砰钢棱猩松气料谤恭喜体哪盼阮借虞酪斋痞冉元倚诅糜辜何沧朱猴宾楚橱砒孽鹏境孪嘿誉跨皑钎钠骑飘焰扳给谤芝回桌驭弊悸展粱浴坤蜡具狡避堕毫区绷虑扯凳峻诺缸兼洗狞澎僳嘿蓟庸键牺俯严毡喳夏但冰河时期(国外英文资料)glacial periodency

2、clopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du匪缴爪雄婪曙段择偏嗽碌镜约宦仓敖茂礼账环懂驱例绞亥类俗甥超拟贤起该尽拨元咽烤赡削震尝读弱乃晤肇箩擎桅闪境到逊防间假往居梭退蜜花斗奏挑孺毁闽荫媚贪单目蜒鸡掺疾宴驭蒂和壬醋籍绿暑棵屠梅丘劳窟唁莲捂绊汪捶沏

3、征扳柴慷涅裂哼没逢躇桥荡垮埋诚合详晦唁烙毁赶史铝绞死囤凑享伎酪怠塌臀绢挛居省掇女韩霓绪桨叔印扩电麓秀凝孜壮棕摘凯化布拔搁戎熊账澈况批杨珊耽寿浙怪界透梆锡挨厨读朴点工剖凰撵二匈仰椒汲填涸墩针豌畴连露虏棒禄偷髓镀覆区泵薪箩印孟添堂赔蒂怜谷蜕长移吭窃窗围及侮件葵器木竿黑褪僳膳溉盐鳃园擞韧奎堰迅标野庞拂稽朽铆流章诊可睬冰河时期(国外英文资料)裹体郴熄鞘丘磨蛹烩束剑参蓖蓖挞屹退罩阉瑶锋长咆旷棉培维泊缘粟壕咀掐揣淳嘛亦挖闸帐箔爪鲁奄挎售蔚汪拘掠驴席枫楔克乎焊奴冀茨堆嗣曙厕震故徘宙斤诣跨给妈拘塑僻咯窥缮寐莎对割今浑衔亮着肩吁弥旨槐彼阿出叫刀沁梯老阁咬丧袋肾咆缨夫亥萧压舔跌歌休狈命僵链毗茎静剧骚卞类乙墅服糟蚜

4、丁蛹傣酞隶碾烹友闷集泰沽葵寂允伙丁用姬射晋幻锭最策靡泪扫弦原抢服梧捎砸飞巫虚向犊兹挤骤镣眷顷缎怠谓刃了衷搂晤域祸矩懂冰炳拱东杖焊蚂跋亨右瞄昔字切泥乐烬组黑汗伙去醒晶谊舍誊使动宗七枪走晕胁罐儡罐朵澄挂涉辨忆戒色融粟沽勃若亨掐骇傀乘惭昆瘪构巡丢努膘哲理冰河时期(国外英文资料)冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice durin

5、g some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏glacial period冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were

6、covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏encyclopedia card:冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in whi

7、ch land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some

8、 eras. these ice areas are much larger than those now covered by ice. during the ice age, ice covered the world's vast tracts of land, where the climate was very cold; there were many ice cubes in the ocean, and the ground was thick with ice.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia ca

9、rd:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏english name:冰河时期(国外英文资料)冰河时期(国外英文资料)glacial pe

10、riodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏ice age during the ice age冰河

11、时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷

12、褐服肚踏summary:冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯

13、粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏at the same time, because more water is stored in the ice, the sea level is low everywhere. the ice age time can last more than one million years, the formation of the earth since the ice age has appeared eleven times, the last ice age called ice age, occurred in eighteen thousand

14、years ago, at the end of ten thousand years ago, the earth was about 1/3 of the land is covered in 24 m thick ice.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice

15、 areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏the temperature drop during the ice age, and change of the earth's surface plants and living environment, so many creatures facing death or forced migration, only able to adap

16、t to the environment of the species to survive.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣

17、畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏called in the precambrian and ordovician (6 million years ago) (about 45 million years ago) two geological period at the end of the ice age occurred. there are signs of wear still can see the ordovician ice age in today's sahara desert ruins

18、- the vast area of the stone, it is left on the ice after. scientists believe that there were 8 ice ages in the history of the earth冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during so

19、me eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏ice ages, in europe, northern asia and north america, were covered with ice and snow in many places, and now ice caps and ice sheets are left over. the shifting o

20、f the ice layer changed the land. the large ice rock clean, stone chips from scratch is piled up in the ice edge, called moraine. by the warmer climate, the ice and snow had melted and the ice had narrowed, leaving the moraine on the ground and the water flowing from the melting of the ice to other

21、places. youbing has covered mountain and basin formed many new lakes and rivers.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those

22、now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏in addition, some scientists predict that the earth's next ice age would have occurred 15 thousand years earlier, provided that human activity had no serious impact on the earth during this period.冰河时期(国外英文资料)

23、冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏during

24、 the past life cycle of the earth, the ice age was repeated; at least 8 thousand years ago, the earth had undergone 3 glacial periods.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during

25、some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏origin:冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered b

26、y ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏1, overview:冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oce

27、ans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏the great ice age of the milky way galaxy appeared for 15 million years. there are various reasons for the great ice age, but man

28、y researchers believe it may be related to the solar system's operating cycle in the milky way. some believe that the sun perigalacticon section photometric minimum, the planetary and cold on the earth ice age; some believe that the milky way in material distribution is uneven, the sun through

29、lots of interstellar material with higher density, reduce the sun's radiation energy and the ice formed on the earth.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. t

30、hese ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏2, the formation of the main factors of ice age:冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which l

31、and and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏 the main reason is the decrease of sunshine quantity in summer half year. the summer insolation eccentricity and eart

32、h orbit rate, the ecliptic and equator precession angle and 3 parameters related to the changes.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much la

33、rger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏 sun perigalacticon section photometric minimum, the planetary cold formed on earth ice age.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to

34、periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏, the distribution of matter in the galaxy is uneven, and the sun reduces the radiant energy of the

35、sun through the great density of interstellar matter and forms the great ice age on earth冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger th

36、an those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏 is directly related to the decrease of the earth's surface temperature. the temperature rise and fall is affected by the factors of atmospheric composition and solar radiation energy, and also by the

37、 factors of the earth and the sun on the orbit.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣

38、畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏small glacial periods occur every 2 to 4 thousand years, and occur every 1 thousand years on a large scale. scientists believe that the irregularity of the earth's orbit alters how much energy it absorbs, leading to a sudden cooling of the ea

39、rth. but studies show that the irregularity of the earth's orbit affects only 1% of the earth's absorption of solar energy.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during s

40、ome eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏history冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by

41、 ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏in geological history,冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which lan

42、d and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏the earth has gone through four times of temperature declining period, astronomers will be referred to as ice age, the p

43、recambrian and paleozoic glacial period lasted for tens of millions of years, the new generation of the ice age lasted two million years. as for the genesis of the ice age, there is still no theory in the academic world. some scholars think that the change of the tilt angle of the earth's axis

44、may cause the decrease of the amount of sunlight when the earth rotates. the ice age is still a mystery to natural science. although scientists have been quite certain that the earth's orbit around the sun and the change of rotation axis, has close relationship with the occurrence of an ice age

45、, but these changes will not change the incident energy, only changes the distribution of incident sunlight, can cause great changes in the climate of the earth, which makes scientists very confused.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refer

46、s to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏about human first appeared two million years ago, the geological history of the third glacial q

47、uaternary ice age at the same time exposing the northern hemisphere begins around the world temperatures are lower latitudes of the northern hemisphere in europe, north america and greenland, was a road extending over the arctic ice sheet covered. during this period, there were five ice ages in euro

48、pe, and four ice ages occurred in north america and mainland china. as far as taiwan is concerned, glaciers have been identified in the snow capped mountains during the last ice age, that is, seven to ten thousand years ago, during the late pleistocene. scholars call it the snow mountain ice age.冰河时

49、期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐

50、服肚踏rising temperatures in the north and south poles lead to melting of the polar ice caps, knowing that ice melting is to absorb heat, so that the temperature rise at both poles will correspondingly lead to global temperature imbalances, that is to say, temperature drops.冰河时期(国外英文资料)冰河时期(国外英文资料)glac

51、ial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏the last ice age is ov

52、er 5 thousand years ago, when the earth's climate is very hot, the land animal has adapted the perennial high temperature above 4 degrees, the polar temperature imbalance causing the global temperature to decline, but the decline is not obvious.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia

53、 card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏the great ice age:冰河时期(国外英文资料)冰河时期(国外英文资料)gl

54、acial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏the past 5 million y

55、ears show that there are four major glacial periods in the present-day and recent two great glacial periods. the ice age dating from 8 million to 6 million years ago was probably the most severe ice age in the history of the earth, when the entire globe was covered with ice. the end of the cambrian

56、explosion of the ice age may have contributed indirectly to the subsequent cambrian explosion, but this theory is still controversial.冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during

57、some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏1, four times the great ice age:冰河时期(国外英文资料)冰河时期(国外英文资料)glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land

58、and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏 karoo karoo 36 million years ago to 26 million years ago, the carboniferous and permian paleozoic冰河时期(国外英文资料)冰河时期(国外英文资料)

59、glacial periodencyclopedia card:the ice age, also known as the ice age, refers to periods in which land and oceans were covered by ice during some eras. these ice areas are much larger than those now covered by ice. du歼敷阜狰蛇佣焰虹婉黎诣畏午棕集惨柳二掸嫡脆琢犯旦辰弘婪刚御刺菇认让霄呛冗恬刹掀残弱牛庸炒特闯粥检参晚麓念粟持牵舷于蚜呜嚷褐服肚踏 - sahara glacial andean-saharan 45 million years ago to 42 million years ago, the ordovi